[MSDN Library June 1998] Only one database connection at a time is supported (22.7715242627987%)

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

[MSDN Library June 1998] Only one clustered index can be created on table ' (21.5712180040265%)

MSDN Library Visual Studio 6.0 > Visual Studio Documentation > Data Access Tools and Technologies > Microsoft Visual Database Tools > Interface Reference > Troubleshooting Error Messages > Database Designer Troubleshooting Errors

[MSDN Library June 1998] Only One Default Gateway Allowed on Proxy Server (19.9824355971897%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Proxy Server

[MSDN Library June 1998] Only one ROWGUID column is allowed per table. (19.5220376761576%)

MSDN Library Visual Studio 6.0 > Visual Studio Documentation > Data Access Tools and Technologies > Microsoft Visual Database Tools > Interface Reference > Troubleshooting Error Messages > Database Designer Troubleshooting Errors

[MSDN Library June 1998] Only 128 Print Sessions Active in SNA Server Print Service (17.8942232630757%)

MSDN Library Visual Studio 6.0 > Knowledge Base > SNA Server

[MSDN Library September 1992] Only Spaces May Separate Additional Libraries in PWB (16.5300546448087%)

Knowledge Base and Bug Lists > Programmer's WorkBench KBase

[MSDN Library September 1992] Only Certain C Library Functions Have an Intrinsic Form (15.9836065573771%)

Knowledge Base and Bug Lists > C/C++ KBase