What happens is that LaunchAppAndWait( ) is not allowed to launch certain executable files. It returns a -1 error code.
This install program works on all other operating systems, so I suppose it has to do with tighter security or something else which changed with Service Pack 2.
I even tried creating a *.bat batch file with the command in it, and then invoking the batch file, but that failed as well.
I am logged on as an Administrator.
Any ideas? The clock is running out on this one, and I'm not sure what to do.
Edited by shuttledude, 05 May 2007 - 14:41.