The d3dg.dll file is a component of a 3DA Direct3D Wrapper from ToMMTi-Systems. Wrappers are software tools used to convert graphics from one format to another. They work as mini-emulators and allow a user to run a game designed for certain video cards on a computer that does not have that card. This wrapper allows a user to run Direct3D programs on a computer without a 3D video card.
If you are getting an error with the d3dg dynamic link library file, you may not be able to run the program that needs a Direct3D wrapper. Try cleaning your registry to solve this issue.
Every file on your computer is tracked by an entry in the registry database. Windows uses the registry to find and run those files when they are needed. If there is a mistake in the registry, your programs break.
Run ZookaWare PC Cleaner to fix registry errors. ZookaWare PC Cleaner is guaranteed to find and fix every mistake in your registry. That gets you back in the game instead of fixing your computer. Try a free ZookaWare PC Cleaner scan to see if your registry needs to be cleaned.