Notes about the D01 file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The D01 file type is primarily associated with 'Ganbatte! Winamp Plug-in'. Note: .D00 and .D01 formats created by Jens-Christian Huus of the Vibrants and contains OPL2 music data.