VeriSign is the most expensive, if you want it cheaper you'll need to find another option. Some have been recommended in this forum before, but I have no idea what they were.


There are 3 AppData folders, two for the current user (one on the current computer, one for any computer on the network), and one for all users on the current computer. There is a bit more information (and a VB6/VBA/VBScript code example) in the article Where should I store the files that my program uses/creates? from our Classic VB FAQs (in the FAQ forum)

By default all users have full permission to their own AppData folders, but read-only permissions to the shared one (so if you want it to be shared, create a sub-folder and change permissions for it during installation).