[MSDN Library June 1998] IS Functions (100%)

MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 97 Documentation > Excel > Excel 97 Worksheet Functions Reference > Function Reference

[MSDN Library June 1998] Is Operator (52.375730994152%)

MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 95 Documentation > Excel > Microsoft Excel/Visual Basic Reference > A-Z Reference

[MSDN Library June 1998] Is Operator (36.2938596491228%)

MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 95 Documentation > Access > Microsoft Access 95 Language Reference > Part 2 A-Z Reference

[MSDN Library September 1992] is Functions (33.3502024291498%)

Product Documentation > C/C++ 7.0 > Run-time Library Reference > PART 2 Run-Time Functions > Alphabetic Function Reference > I-K

[MSDN Library June 1998] is, isw Routines (21.7583220872695%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Using Visual C++ > Visual C++ Programmer's Guide > Run-Time Library Reference > Alphabetic Function Reference > I Through K

[MSDN Library June 1998] Is There More? (18.1234335839599%)

MSDN Library Visual Studio 6.0 > Conference Papers > Tech*Ed 95 Conference Papers > Microsoft BackOffice > BackOffice Integration and Migration from AS/400