I'm kindda glad that I'm not the only one with this problem. I added a couple of new log-lines, but couldn't determine why the loop got stuck on the second program, second command (at least in my case) I've even tried with a whole new config.js, where I only have 1 app with 2 commands (created in the WPI-wizard), but even that is weird. It runs the first command just fine, and then come with this JavaScript error: JavaScript Error Report Message: 'undefined' is null or is not an object Url: C:\install\WPI\WPI.hta File: core.js Function: FileExists() Line: 244 I've checked every aspect of the FileExists()-function, and there doesn't seem to be any problems there. I really like the new install GUI, and hope this problem will be solved soon. Thanks for the great work :-)