Christian,
of course, this has nothing to do with the installer at all. Is your own Clarion application UAC-aware?
If "c:\AnotherFolder" (not a protected Windows resource) works fine but the "Program Files" folder tree (a protected Windows resource) does not work, then you have a serious (UAC) issue in your own application ;-)
BTW, here is a very brief description of how to make an application "UAC-aware"
http://www.lindersoft.com/forums/sho...3976#post83976
Does this help?
Friedrich