Configuring Microsoft SQL Server for XA support XA support was tested against the following Microsoft SQL Server versions: MSSQL 6.5 RTM (WinNt4 Sp3) MSSQL 7.0EE SP4 (Win2k AdvSrv Sp3) MSSQL 2000 SP3a (Win2k Sp3) Before using the Microsoft SQL Server XA features, you must install and register the Microsoft SQL Server extended stored procedures, for this :1) copy xp_oplxa.dll ( xp_oplxa65.dll for MSSQL 6.5) to the MSSQLServer_Root/binn directory2) execute the command :isql.exe -Usa -Psa_pwd -ig:xp_oplxa.sql orisql.exe -Usa -Psa_pwd -ig:xp_oplxa65.sql (for MSSQL 6.5)