Issues with a windows service

Question

I have created a windows service for a client (two versions: .net 1.1 and .net 2.0) that launches a program called Loader.   Loader makes sure there is an updated copy of a file called updater on the computer.  Updater will download files, one of which is the Loader, to make sure their clients have the latest updates to their software.

The Loader and Updater programs are written in Foxpro.

Both versions of the service work fine, they both launch the Loader program.  The client recently started compiling their programs in Foxpro 9 and now the Loader will not launch the Updater program.  This only happens if the Loader is run by the service, if it is run manually, they work fine.  Does anyone have insight as to why this might be happening? If they recompile in Foxpro 8, everything seems to work fine.