On sync we should remove any VS compiler output for previous versions.

Projects/Bin/synch-isfiles.bat

@@ -16,6 +16,11 @@ copy ..\..\Files\ISetup-dark.chm
 copy ..\..\Files\WizClassicSmallImage.bmp
 copy ..\..\whatsnew.htm
 
+del *.exp
+del *.lib
+del *.pdb
+del *.bsc
+
 echo - Synching files done
 
 if "%1"=="nopause" goto :eof