I would personally recommend placing this file in the appropriate program folder, rather than in the \Windows folder.

PPC2002 devices include a copy of the DLL in the \Windows folder just in case an application uses it doesn't include one in the installation package, but it's usually preferred for an application to install it's own copy of the GAPI DLL in the same location as the executable. This is partly because there a re a couple of different versions of the GAPI DLL out there, and it helps to prevent problems due to a version mismatch

When placed in the same folder as the executable for the game, it should detect it there first (and only look in \Windows if it doesn't find it there)

Kieren