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Asked: 2026-05-28T13:10:37+00:00

I am using SQL Server DB. The connection string is Data Source=office1\SQLEXPRESS;AttachDbFilename=|DataDirectory|\dbSQLTest.mdf;Integrated Security=True;Connect Timeout=30;User

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I am using SQL Server DB. The connection string is

Data Source=office1\SQLEXPRESS;AttachDbFilename=|DataDirectory|\dbSQLTest.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True

On local computer it is fine. On the network computer, it gives
“Invalid Key for attachdbfilename”

I do not want to make server client application. My purpose to use Sql server DB is to run my application on 3-4 computer simultaneously. I just make shortcut from my main computer to the network computers.
The reason why I donot attach with server instance is that it is difficult for the users to attach DBs with server and then manage SSMS.
Please advise
Thanks
Furqan

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1 Answer

  1. Editorial Team

    AttachDbFilename is used with local database. If you have remote database then the connection string will be different. Have a look at article – How to configure SQL Server 2005 to allow remote connections.

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