diff --git a/runprebuild.bat b/runprebuild.bat
index 3ee1648c63..e5d7cb882c 100755
--- a/runprebuild.bat
+++ b/runprebuild.bat
@@ -5,23 +5,23 @@ bin\Prebuild.exe /target vs2015
 setlocal ENABLEEXTENSIONS
 set VALUE_NAME=MSBuildToolsPath
 
+if "%PROCESSOR_ARCHITECTURE%"=="x86" set PROGRAMS=%ProgramFiles%
+if defined ProgramFiles(x86) set PROGRAMS=%ProgramFiles(x86)%
+
 rem Try to find VS2019
 for %%e in (Enterprise Professional Community) do (
     if exist "%PROGRAMS%\Microsoft Visual Studio\2019\%%e\MSBuild\Current\Bin\MSBuild.exe" (
 
-        set ValueValue="%PROGRAMS%\Microsoft Visual Studio\2019\%%e\MSBuild\Current\Bin\"
+        set ValueValue="%PROGRAMS%\Microsoft Visual Studio\2019\%%e\MSBuild\Current\Bin\MSBuild"
 		goto :found
     )
 )
 
 rem try find vs2017
-if "%PROCESSOR_ARCHITECTURE%"=="x86" set PROGRAMS=%ProgramFiles%
-if defined ProgramFiles(x86) set PROGRAMS=%ProgramFiles(x86)%
-
 for %%e in (Enterprise Professional Community) do (
     if exist "%PROGRAMS%\Microsoft Visual Studio\2017\%%e\MSBuild\15.0\Bin\MSBuild.exe" (
 
-        set ValueValue="%PROGRAMS%\Microsoft Visual Studio\2017\%%e\MSBuild\15.0\Bin\"
+        set ValueValue="%PROGRAMS%\Microsoft Visual Studio\2017\%%e\MSBuild\15.0\Bin\MSBuild"
 		goto :found
     )
 )
@@ -40,7 +40,7 @@ if defined FOUNDGREP (
 
 rem try vs2015
 FOR /F "usebackq tokens=1-3" %%A IN (`REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\14.0" /v %VALUE_NAME% 2^>nul ^| %FINDCMD% "%VALUE_NAME%"`) DO (
-	set ValueValue=%%C
+	set ValueValue=%%C\msbuild
 	goto :found
 )
 
@@ -54,6 +54,6 @@ goto :done
 :found
     @echo Found msbuild at %ValueValue%
     @echo Creating compile.bat
-    @echo %ValueValue%\msbuild opensim.sln > compile.bat
+    @echo %ValueValue% opensim.sln > compile.bat
 
 :done
\ No newline at end of file