[MSDN Library June 1998] Illegal version syntax: (100%)
MSDN Library Visual Studio 6.0 > Visual SourceSafe Documentation > Reference Guide > Error Messages
[MSDN Library June 1998] Illegal version number (92.7083333333333%)
MSDN Library Visual Studio 6.0 > Visual SourceSafe Documentation > Reference Guide > Error Messages
[MSDN Library June 1998] Illegal file or project name(s): (85.6060606060606%)
MSDN Library Visual Studio 6.0 > Visual SourceSafe Documentation > Reference Guide > Error Messages
[MSDN Library September 1992] Illegal Instruction Segreg (28.3882783882784%)
Knowledge Base and Bug Lists > MASM KBase
[MSDN Library September 1992] Illegal Instruction under CodeView (27.03081232493%)
Knowledge Base and Bug Lists > MASM KBase
[MSDN Library June 1998] Illegal Operation or Access Violation When Starting Windows (26.27665390924%)
MSDN Library Visual Studio 6.0 > Knowledge Base > IE Current Release
[MSDN Library June 1998] Illegal expression list usage (25.832807223241%)
MSDN Library Visual Studio 6.0 > Visual Studio Documentation > Data Access Tools and Technologies > Microsoft Visual Database Tools > Interface Reference > Troubleshooting Error Messages > Query Designer Troubleshooting Errors