I have a Visual C++ application using CRecordset to connect with Sql Server 2000 on Windows 2000 Server on a Local Network, the ODBC connection string is: ODBC;DRIVER={SQL Server};SERVER=servername;DATABASE=dbname;Trusted_Connection=Yes Running the application on the computer with Windows Vista Home, the tables opening on Sql Server is very slow, whereas running the same application on Windows 2000 the open is very fast. Someone can help me to solve this issue? I already tried to: - disable Windows Defender - disable Windows Firewall - activate and use the Administrator login - disable the IPv6 protocl - disable autotuning there a re no antivirus software on computer with Windows Vista ... but resultless :-(( Thanks for any help Claudio