Notes about the VWT 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 VWT file type is primarily associated with 'MGI VideoWave Video Wave Thumbnail' by Sonic Solutions. (MGI to be bought by Roxio) Sonic Solutions bought out Roxio’s consumer software division on 20 December 2004.