I am currently working on an apllication written in Visual Basic 6.0. The server part of the application (VB6, DCOM) is installed on Windows NT and the clients are installed on Windows XP. To make it more complicated, the NT servers and the XP clients are on different domains (say NTD and XPD).
The system is in Production and normally works fine but intermittently the client fails to start "Runtime error 70 - Permission denied". It doesn't seem anything in the code but more to do with the way security on DCOM is setup or the way two domains interact with each other.
It's quite a critical problem and any help would be highly appreciated.