Convert vst to gif Online: vst2gif

You can use Tom's Editor to easily convert images from
Vista .VST to CompuServe Graphics Interchange Format .GIF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

VST

Vista is an image format with extension VST.

GIF

GIF images were created by Compuserve. They can used no more than 256 colors and a single color transparenty (no Alpha channel). Today are rare since they offer low quality and huge filesizes. GIF animations are still in use.