diff --git a/OpenSim/Data/Base/AppearanceTableMapper.cs b/OpenSim/Data/Base/AppearanceTableMapper.cs
index 60acfe017e..79648802a2 100644
--- a/OpenSim/Data/Base/AppearanceTableMapper.cs
+++ b/OpenSim/Data/Base/AppearanceTableMapper.cs
@@ -32,6 +32,9 @@ using OpenSim.Framework;
 
 namespace OpenSim.Data.Base
 {
+    /// <summary>
+    /// 
+    /// </summary>
     public class AppearanceRowMapper : BaseRowMapper<AvatarAppearance>
     {
         public AppearanceRowMapper(BaseSchema schema, AvatarAppearance obj)
@@ -40,6 +43,9 @@ namespace OpenSim.Data.Base
         }
     }
 
+    /// <summary>
+    /// 
+    /// </summary>
     public class AppearanceTableMapper : BaseTableMapper<AppearanceRowMapper, Guid>
     {
         public AppearanceTableMapper(BaseDatabaseConnector database, string tableName)
@@ -186,28 +192,55 @@ namespace OpenSim.Data.Base
 
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="userID"></param>
+        /// <param name="appearance"></param>
+        /// <returns></returns>
         public bool Add(Guid userID, AvatarAppearance appearance)
         {
             AppearanceRowMapper mapper = CreateRowMapper(appearance);
             return Add(mapper);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="userID"></param>
+        /// <param name="appearance"></param>
+        /// <returns></returns>
         public bool Update(Guid userID, AvatarAppearance appearance)
         {
             AppearanceRowMapper mapper = CreateRowMapper(appearance);
             return Update(appearance.Owner.UUID, mapper);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="appearance"></param>
+        /// <returns></returns>
         protected AppearanceRowMapper CreateRowMapper(AvatarAppearance appearance)
         {
             return new AppearanceRowMapper(m_schema, appearance);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <returns></returns>
         protected AppearanceRowMapper CreateRowMapper()
         {
             return CreateRowMapper(new AvatarAppearance());
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <param name="appearance"></param>
+        /// <returns></returns>
         protected AppearanceRowMapper FromReader(BaseDataReader reader, AvatarAppearance appearance)
         {
             AppearanceRowMapper mapper = CreateRowMapper(appearance);
@@ -215,6 +248,11 @@ namespace OpenSim.Data.Base
             return mapper;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <returns></returns>
         public override AppearanceRowMapper FromReader(BaseDataReader reader)
         {
             AppearanceRowMapper mapper = CreateRowMapper();
@@ -222,6 +260,12 @@ namespace OpenSim.Data.Base
             return mapper;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="presenceID"></param>
+        /// <param name="val"></param>
+        /// <returns></returns>
         public bool TryGetValue(Guid presenceID, out AvatarAppearance val)
         {
             AppearanceRowMapper mapper;
diff --git a/OpenSim/Data/Base/BaseDataReader.cs b/OpenSim/Data/Base/BaseDataReader.cs
index 517f672589..23f03e530b 100644
--- a/OpenSim/Data/Base/BaseDataReader.cs
+++ b/OpenSim/Data/Base/BaseDataReader.cs
@@ -31,25 +31,47 @@ using System.IO;
 
 namespace OpenSim.Data.Base
 {
+    /// <summary>
+    /// 
+    /// </summary>
     public abstract class BaseDataReader
     {
         private readonly IDataReader m_source;
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="source"></param>
         public BaseDataReader(IDataReader source)
         {
             m_source = source;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public object Get(string name)
         {
             return m_source[name];
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public ushort GetUShort(string name)
         {
             return (ushort)m_source.GetInt32(m_source.GetOrdinal(name));
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public byte GetByte(string name)
         {
             int ordinal = m_source.GetOrdinal(name);
@@ -57,16 +79,31 @@ namespace OpenSim.Data.Base
             return value;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public sbyte GetSByte(string name)
         {
             return (sbyte)m_source.GetInt16(m_source.GetOrdinal(name));
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public float GetFloat(string name)
         {
             return m_source.GetFloat(m_source.GetOrdinal(name));
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public byte[] GetBytes(string name)
         {
             int ordinal = m_source.GetOrdinal(name);
@@ -94,6 +131,11 @@ namespace OpenSim.Data.Base
             return memStream.ToArray();
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public string GetString(string name)
         {
             int ordinal = m_source.GetOrdinal(name);
@@ -107,21 +149,40 @@ namespace OpenSim.Data.Base
             return (string)value;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <returns></returns>
         public bool Read()
         {
             return m_source.Read();
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public virtual Guid GetGuid(string name)
         {
             return m_source.GetGuid(m_source.GetOrdinal(name));
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public UInt32 GetUInt32(string name)
         {
             return (UInt32)GetInt32(name);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         private Int32 GetInt32(string name)
         {
             int ordinal = m_source.GetOrdinal(name);
@@ -129,6 +190,11 @@ namespace OpenSim.Data.Base
             return int32;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="name"></param>
+        /// <returns></returns>
         public Int64 GetInt64(string name)
         {
             int ordinal = m_source.GetOrdinal(name);
diff --git a/OpenSim/Data/Base/BaseDatabaseConnector.cs b/OpenSim/Data/Base/BaseDatabaseConnector.cs
index 6988839922..542004c563 100644
--- a/OpenSim/Data/Base/BaseDatabaseConnector.cs
+++ b/OpenSim/Data/Base/BaseDatabaseConnector.cs
@@ -32,10 +32,17 @@ using System.Data.Common;
 
 namespace OpenSim.Data.Base
 {
+    /// <summary>
+    /// 
+    /// </summary>
     public abstract class BaseDatabaseConnector
     {
         protected string m_connectionString;
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="connectionString"></param>
         public BaseDatabaseConnector(string connectionString)
         {
             m_connectionString = connectionString;
@@ -44,6 +51,14 @@ namespace OpenSim.Data.Base
         public abstract DbConnection GetNewConnection();
         public abstract string CreateParamName(string fieldName);
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="mapper"></param>
+        /// <param name="connection"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="key"></param>
+        /// <returns></returns>
         public DbCommand CreateSelectCommand(BaseTableMapper mapper, DbConnection connection, string fieldName, object key)
         {
             string table = mapper.TableName;
@@ -61,6 +76,14 @@ namespace OpenSim.Data.Base
             return command;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="mapper"></param>
+        /// <param name="command"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="key"></param>
+        /// <returns></returns>
         public string CreateCondition(BaseTableMapper mapper, DbCommand command, string fieldName, object key)
         {
             string keyFieldParamName = mapper.CreateParamName(fieldName);
@@ -73,6 +96,14 @@ namespace OpenSim.Data.Base
             return String.Format("{0}={1}", fieldName, keyFieldParamName);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="mapper"></param>
+        /// <param name="connection"></param>
+        /// <param name="rowMapper"></param>
+        /// <param name="primaryKey"></param>
+        /// <returns></returns>
         public DbCommand CreateUpdateCommand(BaseTableMapper mapper, DbConnection connection, object rowMapper, object primaryKey)
         {
             string table = mapper.TableName;
@@ -105,6 +136,13 @@ namespace OpenSim.Data.Base
             return command;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="mapper"></param>
+        /// <param name="connection"></param>
+        /// <param name="obj"></param>
+        /// <returns></returns>
         public DbCommand CreateInsertCommand(BaseTableMapper mapper, DbConnection connection, object obj)
         {
             string table = mapper.TableName;
@@ -132,6 +170,11 @@ namespace OpenSim.Data.Base
             return command;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="value"></param>
+        /// <returns></returns>
         public virtual object ConvertToDbType(object value)
         {
             return value;
diff --git a/OpenSim/Data/Base/BaseFieldMapper.cs b/OpenSim/Data/Base/BaseFieldMapper.cs
index 4fdc7b9eec..c7d6bc92e9 100644
--- a/OpenSim/Data/Base/BaseFieldMapper.cs
+++ b/OpenSim/Data/Base/BaseFieldMapper.cs
@@ -34,11 +34,17 @@ namespace OpenSim.Data.Base
     public delegate TField ObjectGetAccessor<TObj, TField>(TObj obj);
     public delegate void ObjectSetAccessor<TObj, TField>(TObj obj, TField value);
 
+    /// <summary>
+    /// 
+    /// </summary>
     public abstract class BaseFieldMapper
     {
         private readonly BaseTableMapper m_tableMapper;
         private readonly string m_fieldName;
 
+        /// <summary>
+        /// 
+        /// </summary>
         public string FieldName
         {
             get { return m_fieldName; }
@@ -46,6 +52,9 @@ namespace OpenSim.Data.Base
 
         protected Type m_valueType;
 
+        /// <summary>
+        /// 
+        /// </summary>
         public Type ValueType
         {
             get { return m_valueType; }
@@ -53,6 +62,12 @@ namespace OpenSim.Data.Base
 
         public abstract object GetParamValue(object obj);
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="tableMapper"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="valueType"></param>
         public BaseFieldMapper(BaseTableMapper tableMapper, string fieldName, Type valueType)
         {
             m_fieldName = fieldName;
@@ -62,6 +77,13 @@ namespace OpenSim.Data.Base
 
         public abstract void SetPropertyFromReader(object mapper, BaseDataReader reader);
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="command"></param>
+        /// <param name="fieldNames"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="value"></param>
         public void RawAddParam(DbCommand command, List<string> fieldNames, string fieldName, object value)
         {
             string paramName = m_tableMapper.CreateParamName(fieldName);
@@ -74,6 +96,13 @@ namespace OpenSim.Data.Base
             command.Parameters.Add(param);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <typeparam name="TObj"></typeparam>
+        /// <param name="obj"></param>
+        /// <param name="command"></param>
+        /// <param name="fieldNames"></param>
         public virtual void ExpandField<TObj>(TObj obj, DbCommand command, List<string> fieldNames)
         {
             string fieldName = FieldName;
@@ -82,6 +111,11 @@ namespace OpenSim.Data.Base
             RawAddParam(command, fieldNames, fieldName, m_tableMapper.ConvertToDbType(value));
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <returns></returns>
         protected virtual object GetValue(BaseDataReader reader)
         {
             object value;
@@ -130,6 +164,11 @@ namespace OpenSim.Data.Base
         }
     }
 
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <typeparam name="TObject"></typeparam>
+    /// <typeparam name="TField"></typeparam>
     public class ObjectField<TObject, TField> : BaseFieldMapper
     {
         private readonly ObjectGetAccessor<TObject, TField> m_fieldGetAccessor;
@@ -157,6 +196,13 @@ namespace OpenSim.Data.Base
         }
 
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="tableMapper"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="rowMapperGetAccessor"></param>
+        /// <param name="rowMapperSetAccessor"></param>
         public ObjectField(BaseTableMapper tableMapper, string fieldName, ObjectGetAccessor<TObject, TField> rowMapperGetAccessor,
                            ObjectSetAccessor<TObject, TField> rowMapperSetAccessor)
             : base(tableMapper, fieldName, typeof(TField))
diff --git a/OpenSim/Data/Base/BaseRowMapper.cs b/OpenSim/Data/Base/BaseRowMapper.cs
index a61ce49db1..d07f9b3791 100644
--- a/OpenSim/Data/Base/BaseRowMapper.cs
+++ b/OpenSim/Data/Base/BaseRowMapper.cs
@@ -27,27 +27,46 @@
 
 namespace OpenSim.Data.Base
 {
+    /// <summary>
+    /// 
+    /// </summary>
     public abstract class BaseRowMapper
     {
         public abstract void FillObject(BaseDataReader reader);
     }
 
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <typeparam name="TObj"></typeparam>
     public class BaseRowMapper<TObj> : BaseRowMapper
     {
         private readonly BaseSchema m_schema;
         private readonly TObj m_obj;
 
+        /// <summary>
+        /// 
+        /// </summary>
         public TObj Object
         {
             get { return m_obj; }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="schema"></param>
+        /// <param name="obj"></param>
         public BaseRowMapper(BaseSchema schema, TObj obj)
         {
             m_schema = schema;
             m_obj = obj;
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="reader"></param>
         public override void FillObject(BaseDataReader reader)
         {
             foreach (BaseFieldMapper fieldMapper in m_schema.Fields.Values)
diff --git a/OpenSim/Data/Base/BaseSchema.cs b/OpenSim/Data/Base/BaseSchema.cs
index 656433fbd1..9d69a40154 100644
--- a/OpenSim/Data/Base/BaseSchema.cs
+++ b/OpenSim/Data/Base/BaseSchema.cs
@@ -29,16 +29,26 @@ using System.Collections.Generic;
 
 namespace OpenSim.Data.Base
 {
+    /// <summary>
+    /// 
+    /// </summary>
     public class BaseSchema
     {
         protected BaseTableMapper m_tableMapper;
         protected Dictionary<string, BaseFieldMapper> m_mappings;
 
+        /// <summary>
+        /// 
+        /// </summary>
         public Dictionary<string, BaseFieldMapper> Fields
         {
             get { return m_mappings; }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="tableMapper"></param>
         public BaseSchema(BaseTableMapper tableMapper)
         {
             m_mappings = new Dictionary<string, BaseFieldMapper>();
@@ -46,13 +56,29 @@ namespace OpenSim.Data.Base
         }
     }
 
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <typeparam name="TObj"></typeparam>
     public class BaseSchema<TObj> : BaseSchema
     {
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="tableMapper"></param>
         public BaseSchema(BaseTableMapper tableMapper)
             : base(tableMapper)
         {
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <typeparam name="TField"></typeparam>
+        /// <param name="fieldName"></param>
+        /// <param name="rowMapperGetAccessor"></param>
+        /// <param name="rowMapperSetAccessor"></param>
+        /// <returns></returns>
         public ObjectField<TObj, TField> AddMapping<TField>(string fieldName,
                                                             ObjectGetAccessor<TObj, TField> rowMapperGetAccessor,
                                                             ObjectSetAccessor<TObj, TField> rowMapperSetAccessor)
diff --git a/OpenSim/Data/Base/BaseTableMapper.cs b/OpenSim/Data/Base/BaseTableMapper.cs
index 649b22827f..28b7ac8928 100644
--- a/OpenSim/Data/Base/BaseTableMapper.cs
+++ b/OpenSim/Data/Base/BaseTableMapper.cs
@@ -31,11 +31,18 @@ using System.Data.Common;
 
 namespace OpenSim.Data.Base
 {
+    /// <summary>
+    /// 
+    /// </summary>
     public abstract class BaseTableMapper
     {
         private readonly BaseDatabaseConnector m_database;
         private readonly object m_syncRoot = new object();
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="action"></param>
         protected void WithConnection(Action<DbConnection> action)
         {
             lock (m_syncRoot)
@@ -74,59 +81,124 @@ namespace OpenSim.Data.Base
             get { return m_keyFieldMapper; }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="database"></param>
+        /// <param name="tableName"></param>
         public BaseTableMapper(BaseDatabaseConnector database, string tableName)
         {
             m_database = database;
             m_tableName = tableName.ToLower(); // Stupid MySQL hack.
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="fieldName"></param>
+        /// <returns></returns>
         public string CreateParamName(string fieldName)
         {
             return m_database.CreateParamName(fieldName);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="primaryKey"></param>
+        /// <returns></returns>
         protected DbCommand CreateSelectCommand(DbConnection connection, string fieldName, object primaryKey)
         {
             return m_database.CreateSelectCommand(this, connection, fieldName, primaryKey);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="command"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="key"></param>
+        /// <returns></returns>
         public string CreateCondition(DbCommand command, string fieldName, object key)
         {
             return m_database.CreateCondition(this, command, fieldName, key);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="obj"></param>
+        /// <returns></returns>
         public DbCommand CreateInsertCommand(DbConnection connection, object obj)
         {
             return m_database.CreateInsertCommand(this, connection, obj);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="rowMapper"></param>
+        /// <param name="primaryKey"></param>
+        /// <returns></returns>
         public DbCommand CreateUpdateCommand(DbConnection connection, object rowMapper, object primaryKey)
         {
             return m_database.CreateUpdateCommand(this, connection, rowMapper, primaryKey);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="value"></param>
+        /// <returns></returns>
         public object ConvertToDbType(object value)
         {
             return m_database.ConvertToDbType(value);
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="reader"></param>
+        /// <returns></returns>
         protected virtual BaseDataReader CreateReader(IDataReader reader)
         {
             return m_database.CreateReader(reader);
         }
     }
 
+    /// <summary>
+    /// 
+    /// </summary>
+    /// <typeparam name="TRowMapper"></typeparam>
+    /// <typeparam name="TPrimaryKey"></typeparam>
     public abstract class BaseTableMapper<TRowMapper, TPrimaryKey> : BaseTableMapper
     {
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="database"></param>
+        /// <param name="tableName"></param>
         public BaseTableMapper(BaseDatabaseConnector database, string tableName)
             : base(database, tableName)
         {
         }
 
-        // HACK: This is a temporary function used by TryGetValue().
-        // Due to a bug in mono 1.2.6, delegate blocks cannot contain
-        // a using block.  This has been fixed in SVN, so the next
-        // mono release should work.
+
+
+        /// <summary>
+        /// HACK: This is a temporary function used by TryGetValue().
+        /// Due to a bug in mono 1.2.6, delegate blocks cannot contain
+        /// a using block.  This has been fixed in SVN, so the next
+        /// mono release should work.
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="primaryKey"></param>
+        /// <param name="result"></param>
+        /// <param name="success"></param>
         private void TryGetConnectionValue(DbConnection connection, TPrimaryKey primaryKey, ref TRowMapper result, ref bool success)
         {
             using (
@@ -148,6 +220,12 @@ namespace OpenSim.Data.Base
             }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="primaryKey"></param>
+        /// <param name="value"></param>
+        /// <returns></returns>
         public bool TryGetValue(TPrimaryKey primaryKey, out TRowMapper value)
         {
             TRowMapper result = default(TRowMapper);
@@ -163,10 +241,15 @@ namespace OpenSim.Data.Base
             return success;
         }
 
-        // HACK: This is a temporary function used by Remove().
-        // Due to a bug in mono 1.2.6, delegate blocks cannot contain
-        // a using block.  This has been fixed in SVN, so the next
-        // mono release should work.
+        /// <summary>
+        /// HACK: This is a temporary function used by Remove().
+        /// Due to a bug in mono 1.2.6, delegate blocks cannot contain
+        /// a using block.  This has been fixed in SVN, so the next
+        /// mono release should work.
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="id"></param>
+        /// <param name="deleted"></param>
         protected virtual void TryDelete(DbConnection connection, TPrimaryKey id, ref int deleted)
         {
             using (
@@ -177,6 +260,11 @@ namespace OpenSim.Data.Base
             }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="id"></param>
+        /// <returns></returns>
         public virtual bool Remove(TPrimaryKey id)
         {
             int deleted = 0;
@@ -196,6 +284,13 @@ namespace OpenSim.Data.Base
             }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="fieldName"></param>
+        /// <param name="primaryKey"></param>
+        /// <returns></returns>
         public DbCommand CreateDeleteCommand(DbConnection connection, string fieldName, TPrimaryKey primaryKey)
         {
             string table = TableName;
@@ -213,10 +308,18 @@ namespace OpenSim.Data.Base
             return command;
         }
 
-        // HACK: This is a temporary function used by Update().
-        // Due to a bug in mono 1.2.6, delegate blocks cannot contain
-        // a using block.  This has been fixed in SVN, so the next
-        // mono release should work.
+
+
+        /// <summary>
+        /// HACK: This is a temporary function used by Update().
+        /// Due to a bug in mono 1.2.6, delegate blocks cannot contain
+        /// a using block.  This has been fixed in SVN, so the next
+        /// mono release should work.
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="primaryKey"></param>
+        /// <param name="value"></param>
+        /// <param name="updated"></param>
         protected void TryUpdate(DbConnection connection, TPrimaryKey primaryKey, TRowMapper value, ref int updated)
         {
             using (DbCommand command = CreateUpdateCommand(connection, value, primaryKey))
@@ -225,6 +328,12 @@ namespace OpenSim.Data.Base
             }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="primaryKey"></param>
+        /// <param name="value"></param>
+        /// <returns></returns>
         public virtual bool Update(TPrimaryKey primaryKey, TRowMapper value)
         {
             int updated = 0;
@@ -244,10 +353,15 @@ namespace OpenSim.Data.Base
             }
         }
 
-        // HACK: This is a temporary function used by Add().
-        // Due to a bug in mono 1.2.6, delegate blocks cannot contain
-        // a using block.  This has been fixed in SVN, so the next
-        // mono release should work.
+        /// <summary>
+        /// HACK: This is a temporary function used by Add().
+        /// Due to a bug in mono 1.2.6, delegate blocks cannot contain
+        /// a using block.  This has been fixed in SVN, so the next
+        /// mono release should work.
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="value"></param>
+        /// <param name="added"></param>
         protected void TryAdd(DbConnection connection, TRowMapper value, ref int added)
         {
             using (DbCommand command = CreateInsertCommand(connection, value))
@@ -256,6 +370,11 @@ namespace OpenSim.Data.Base
             }
         }
 
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="value"></param>
+        /// <returns></returns>
         public virtual bool Add(TRowMapper value)
         {
             int added = 0;
diff --git a/OpenSim/Data/Null/NullDataStore.cs b/OpenSim/Data/Null/NullDataStore.cs
index 90cf3a1a05..51e13d6a1c 100644
--- a/OpenSim/Data/Null/NullDataStore.cs
+++ b/OpenSim/Data/Null/NullDataStore.cs
@@ -33,6 +33,9 @@ using OpenSim.Region.Environment.Scenes;
 
 namespace OpenSim.Data.Null
 {
+    /// <summary>
+    /// NULL DataStore, do not store anything
+    /// </summary>
     public class NullDataStore : IRegionDataStore
     {
         public void Initialise(string dbfile, bool persistPrimInventories)