If you're not comfortable using a fixup file, there are alternative solutions:

For most users, running Section 12 inside a (VMware or VirtualBox) is safer and simpler. The patch works perfectly in emulated environments.

: This is a legacy issue tied to RAD Game Tools' Granny 3D technology, a widely used animation SDK in the gaming industry.

The granny2.dll file in your game folder may be corrupted or deleted.