These are all MS Windows apps, they have zero dependencies and are as small as I could get 'em. Source is supplied for most.
HoeKey
HoeKey is a teeny (19k) program to assign hotkeys to do most anything. Win-N to run notepad, Win-G to google search on current highlighted word, etc etc. It's configurable with a simple .ini file.
Purrint
Make your PrintScreen button work the way it ought. Save to file, print to printer, or copy to dumb ol' clipboard.
Capster
Have a program run at the startup of windows, but only if your caps-lock key is down at the time.
Reso
Make a shortcut to run an app at your favorite resolution. Once the app exits, it switches back to your default resolution.
Bmap
Yet another damn image viewer. 200k, and it works the way I wanted it too.
gen_yar
WinAMP2 plugin to copy all files in current playlist somewhere
ToPNG
Simple command line utility to convert between many image formats
wherzit
4k app to show hidden windows
DevMgr
little app to create shortcuts to properties of devices normally found in device manager