[MSDN Library June 1998] IsCharAlphaNumeric (34.9343185550082%)

MSDN Library Visual Studio 6.0 > Platform SDK > Windows Base Services > General Library > String Manipulation > String Manipulation Reference > String Manipulation Functions

[MSDN Library April 2000] IsCharAlphaNumeric (33.0357142857143%)

MSDN Library - April 2000 > Windows CE Documentation > Application Development > API Reference > Core > Functions

[MSDN Library April 2000] IsCharAlphaNumeric (29.9107142857143%)

MSDN Library - April 2000 > Platform SDK > User Interface Services > Windows User Interface > Resources > Strings > String Reference > String Functions