Here's the source code to an old Visual Basic program I wrote back in 2006 called "VB KeyAscii & KeyCode Finder". This program allows you to enter a character and it will give you detailed information about that character including its KeyAscii value, KeyCode value, and VB Constant Value (if there is one). It also allows you to create a range between 2 KeyAscii or KeyCode values so you can easily test for them. It also includes a number of reference materials for KeyAscii values, KeyCode values, the Shift argument, the Chr() and Asc() functions, and VB KeyCode constants. I also have my VB Key Functions module available as a seperate download.

Download vb_keyascii_and_keycode_finder.zip (May 31, 2006)

Filelist
 Form1.frm
 Module1.bas
 VBKeyFunctions.bas
 vb_keyascii_chart.txt
 vb_keycode_chart.txt
 vb_keycode_constants.txt

MSDN Links
 Explanation of The KeyDown and KeyUp Events (in Visual Basic 6)
 Explanation of The KeyPress Event (in Visual Basic 6)