Hi Stefan, On 16.10.2011 17:19, Stefan Pendl wrote: > Sorry, no fix>:-( > > I don't think there is something special with my configuration, but that might be the case. > > Attached is the log file, now WinXP instead of Win2k. > > Might be that setting a variable with a NULL value is not supported by earlier WSH. > What Windows version are you testing on? It's not setting null but instead it's setting a variable and it's content is an empty string - "". Well I've tested this on an older XP VM and I was able to reproduce the issue. Seems to be fixed on Win7 (my default test environment). I've implemented a work-around which will simply append another empty string to the environment before applying it which seems to tell WSH to treat the variable as a string and it seems to work on Win7 and WinXP. Please try again using version 1.2.1-RC25. <http://wpkg.svn.sourceforge.net/viewvc/wpkg/wpkg/stable/1.2/> Thank you! Rainer |