When I try to set "C:\windows\System32\inetsrv\InetMgr.exe" as the startup program for a Visual Studio project (to test an IIS 7.5 extension), it is rejected with the message "The external program cannot be found".
If I try to select the EXE manually by clicking the ellipses (...) button, the EXE is not in the folder. But if I access the folder via Windows Explorer, I can see it in the folder. I can also see/execute it from a command line.
I even tried changing the startup program in the project file using notepad and reloading the project, but I just get the same error when I start the project.
How can I debug an IIS 7(.5) extension on Windows 7 if it won't let me start InetMgr.exe?