GetEntryAssembly Screen Positon

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C# WinForm Project, VS2005:

I'm writing code in CAB Module. I need to be able to identify the screen
location of the Shell for the project at runtime. I don't have direct access
to the Shell, so myShell.Location doesn't seem like an option. I've tried
using reflection (GetEntryAssembly()), but I'm not coming up with the right
combination of calls to get the screen location (note that the assembly
location, which is a path to the executable is right there). Any suggestions?

Thanks,
Randy