I had an issue in: viewtopic.php?p=134289#p134289
But it seems there must be a bug. I tried to add {TempFolder] to the parameter list, and that one could be resolved. But not the properties I've created...even though I can see in my log that they are set, and the VBS script can show them.
Please take a look at this. It is very urgent as it stops our rollout of installers.