--- a/vcmake.bat	Mon Dec 05 15:40:09 2011 +0100
+++ b/vcmake.bat	Sat Dec 10 13:26:57 2011 +0100
@@ -3,6 +3,9 @@
 @REM type vcmake, and wait...
 @REM do not edit - automatically generated from ProjectDefinition
 @REM -------
-make.exe -N -f bc.mak -DUSEVC %1 %2
 
+@if not defined VSINSTALLDIR (
+	call "C:\Program Files\Microsoft Visual Studio 10.0"\VC\bin\vcvars32.bat
+)
 
+make.exe -N -f bc.mak -DUSEVC %1 %2