HI Yes, I mamanged to kick it into live.
I guess you have the following problem: The App-Domain is definied by the Powershell. This is, why the workingdir of your powershell-snapin is not the path where your dll is located, but the path of PowerShell's exe. There is more than one way to specify where the location of the configfile. Let me know if you still need to see some lines of code.
