I'm trying to log on my school SQL Server from home using a bat file which starts my MS SQL Server Management Studio that displays the Connect to Server dialog box. The Server type is Analysis Services and the Authentication is Windows Authentication.The problem is the user name displayed is incorrect but, the field is inactive so, I can't change it. I used the following run command rundll32.exe keymgr.dll, KRShowKeyMgr to add a new log on credential but the same user name was displayed when I ran the bat file to start MS SQL Server Management Studio again. I then went into the credential manager to verify the new user name was there and it was. How do I change the default user name for MS SQL Server 2008 in Windows7?