FIX: 16-Bit Driver Keyset Cursor Operations with Query Timeout

SYMPTOMS

When you use the client-side SPX Net-Library for Windows (Dbmsspx3.dll), the Microsoft SQL Server 16-bit ODBC Driver version 2.65 may perform significantly slower in operations involving both keyset-driven cursors and the setting of a query timeout. Microsoft has observed a difference up to a factor of six when Dbmsspx3.dll is used, versus the other available net- libraries. Note that for this problem to occur, both a query timeout must be set and keyset-driven cursors must be in use with Dbmsspx3.dll.