3dfxcmn.dll is a process belonging to the 3dfx graphics program . 3dfx graphics accelerator library file provided by 3dfx Interactive, Inc. for display.
Check that 3dfxcmn.dll is stable on your computer.

3dfxcmn.dll is not a critical component. It is highly recommended to run a FREE performance scan to automatically optimize memory, CPU and Internet settings.

Determining whether 3dfxcmn.dll is a virus or a legitimate Windows DLL depends on the directory location it executes or runs from. Click to Scan your PC including 3dfxcmn.dll to Detect any Security Threat.