Hmmm, perhaps %basedir% (this isn't listed in the help file of variables but referenced in the Executing files in your update.
File Association
I'd like to add a file association in our next update. I had no trouble doing this using Install Shield, but instead of having the users uninstall and reinstall, I'd like to offer this in an update using wyUpdate. Curious if there is a simple way to do this. My thought is to add a registry key for it. But how can I access the user's program file's folder? I was hoping there might be a variable like %programfolder% I can use. Is there? Or is there a better way?
You're right we need to update that page to list all the variables. %basedir% will work for your needs.