how can I learn what version I have running ?
menu > Help > about tabbles
I have v4 and v4.0 (per regedit review)
is upgrade to v4.5 painless ???
So you don’t have .net 4.5. This must be because you have an old Tabbles version. You need Tabbles 3.0.41 or above to have the Explorer icons and context-menu. See blog post: http://tabbles.net/blog/version-3-0-40-is-out-bugfixes-in-the-explorer-integration/
Yes, the upgrade is painless.