Occasionally I have commissioned some little utilities before I found CodyLand ... er ... DonationCoder.com! They are Works for Hire so I have at least Non-Exclusive Rights to any use of it I want. (Probably full rights but I'm not gonna pretend those emerging countries are that strict on IP and it's so bare-metal I just wanna' share it.)
I am releasing the first one as Creative Commons Share-Alike, which as I understand it, means that I don't have any delusions of grandeur becoming famous with it, only that if someone wants to fiddle with it, the result also becomes Shareable. I'll leave it to my betters to figure out if that fights with DC rules. www.freevoteusa.com/Software/ShowHideExt.zip
It's a No-Nonsense uility that flips XP between showing and hiding extensions. (I think it does require RightClick/Refresh to see the effect most times.) I got tired of finding some random folder, Tools/FolderOptions/View/Show or Hide Known Ext/Apply/Ok/Close RandomFolder. So I paid a coder for hire a few bucks to make this little thingie.
I'm pretty sure it's clean, not doing sneaky stuff but if one of you TurboExperts sees a problem with it, sure, tell me!
I hope this goes a little way to showing y'all I like ya!