Web Forms :: Data Connection Can't Open In Windows

Apr 2, 2010

I have used vs 2008 to develop an asp.net application.

This application can run in windows xp, windows vista, but can't run under windows 7.

When the application want to new an database connection, it retun null.

I am using sqlserver 2005 express sp3 as my database.

The connection is :

Data Source=./SQLEXPRESS;Initial Catalog=mydb;Integrated Security=True

How can I do?

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