[Gtkradiant] [Bug 644] New: detect regular RTCW or GOTY during install

[gtkradiant@zerowing.idsoftware.com]

http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=644

           Summary: detect regular RTCW or GOTY during install
           Product: GtkRadiant
           Version: 1.2
          Platform: All
        OS/Version: Windows 2000/XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: setup
        AssignedTo: ttimo@idsoftware.com
        ReportedBy: ttimo@idsoftware.com


The paths are different. Do we have a way to tell by looking in the registry?
We need to use the correct default