>I swtiching from COM+ to having my virtual directory run with Application Protect = High so that I can unload my COM EXEs (COM+ only allows unloading of COM DLLs). When I start Internet Information Services, then select "propertiers" on my virtual directory, then click the "directory" tab... then "Unload" button is disabled. Which means I can't unload the DLLs and EXEs from memory.
>
>Anyone know why or how to enable the button or what I am doing wrong?

Unload button will be disabled when:

Web app has not yet started (i.e. after rebooting and prior to first request)

Web app is still running in Medium or Low mode (even if you changed the mode, it wont take efect till IIS is restarted

After first restart, Unload button usually behaves well: if the app is started it will allow you to unload it.

If it doesn't, you can always restart the IIS services (you can do it from the IIS console, on W2K)

Hope this helps,