While doing some Registry-related things with Perl a couple of weeks ago, I ran into something that took me nearly a day to figure out: Win32::TieRegistry asks for write access to the Registry by default, and under Win7 that requires Administrator privileges. (I kid you not, it took me over a day to figure that out.)

Well, getting what turns out to be called "elevated privileges" from Perl turns out to have been pretty hard - a lot harder than it should have been, for reasons I went into in some detail in a little article abo…