[MSDN Library June 1998] You tried to assign the Null value to a variable that isn't a Variant data type. (Error 3162) (32.3916408668731%)

MSDN Library Visual Studio 6.0 > Platform SDK > Database and Messaging Services > DAO SDK > Trappable Microsoft Jet and DAO Errors > Error 3150 - 3199

[MSDN Library June 1998] You cannot rename a site diagram file that is open in an editor. (26.4072653825888%)

MSDN Library Visual Studio 6.0 > Visual InterDev Documentation > Reference > Error Messages

[MSDN Library June 1998] You cannot modify the properties of a file that's checked out (26.164402942841%)

MSDN Library Visual Studio 6.0 > Visual SourceSafe Documentation > Reference Guide > Error Messages

[MSDN Library June 1998] You cannot set the Store Latest Version flag for the file (26.164402942841%)

MSDN Library Visual Studio 6.0 > Visual SourceSafe Documentation > Reference Guide > Error Messages

[MSDN Library June 1998] You cannot move a site diagram file that is open in an editor. (26.1384481782878%)

MSDN Library Visual Studio 6.0 > Visual InterDev Documentation > Reference > Error Messages