If memory serves me correct (and sometimes that fails too), but I used to run into that when originally working with the FoxISAPI for web development of COM servers.

I believe it has to do with access / launch permissions.

From Windows, do Start, Run and enter DCOMCNFG.

This should bring up the Distributed Component Configuration manager. Scroll down the list of controls to see where your control is and double click it.

COM servers are typically launched by default as "IUSR_(machine_name)" account. Make sure that this user has launch and access permissions.

For the Identity tab in DCOM, the default as stated above assumes the "Interactive" user. If the above changes for launch / access don't work, just for grins, change the Identity tab to "This User" and pick someone who WOULD have rights to the given exe, drives, paths, etc... (such as administrator just for testing).

Once you have it working, then I would narrow down to a specific user, or expand the IUSR account to accommodate necessary read/write/access attributes.

HTH