How can I find out which release version was used to save a Version file?
Use a text editor to open the Version file. It will show its binary content, but its first line holds ASCII characters showing the release and servicepack number, and reads for example like: PTVSYSTEM VISUM Version Vers. 18.01-2 Rev.134410
Tip: Use a powerful text editor like TextPad or use TotalCommander, offering with Lister a small size text viewer (use the F3 key), capable of showing content already before loading the complete file.