--- a/vcmake.bat	Sat Mar 30 17:00:13 2013 +0100
+++ b/vcmake.bat	Sat Mar 30 17:01:50 2013 +0100
@@ -5,7 +5,9 @@
 @REM -------
 
 @if not defined VSINSTALLDIR (
-    call ..\rules\vcsetup.bat
+    pushd ..\rules
+    call vcsetup.bat
+    popd
 )
 make.exe -N -f bc.mak -DUSEVC %*