We really shouldn't need to know about those folders, but out of curiosity, I just looked inside them. The one whose name begins mojo..exe contains Mojo's files. The one whose name begins mojo..tion contains those same files plus a few extra that are used by ClickOnce.
I'm trying to imagine why ClickOnce needs two copies of the executables. Maybe it has something to do with updating the installation while the program is being used. (The copies used to launch the program have to remain unchanged until the program shuts down.)
If you really want to know, you could try asking in Microsoft's ClickOnce forum:
http://social.msdn.microsoft.com/for...setup/threads/
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