Visual Basic
ButtonMenu - Drops down a menu off a command button.
CalcSize - Calculates the size of a directory.
IdleTimeout - Example to detect idle time.
InIDE - Determine if code is running in the IDE.
IsArraySafe - Verify an Array has dimensions.
Mailto - Creates an email with a subject and body.
ScreenSaver - Re-useable class and module to create a screen saver.
ShellAndWait - Function to wait for a "Shell" to complete.
TopMost - Set a form to be always on top.
Web Server - Basic web server encapsulated in a few classes.