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Failed to generate a user instance of SQL Server...

Posted By:      Posted Date: September 08, 2010    Points: 0   Category :Sql Server
 
Hi   I am using Windows7 OS. I had Microsoft Visual Developer Express 2010 and  Microsoft visual studios 2008 in my computer. When I am creating a database to my project I receive a error "FAILED TO GENERATE A USER INSTANCE OF SQL SERVER DUE TO FAILURE IN STARTING THE PROCESS FOR USER INSTANCE. THIS CONNECTION WILL BE CLOSED" and an option OK. I tried to install SQL server 2005 Express version but that could not help. When I'm creating database in the VS2008 it showed me a dialog box which says "Connection to SQL Server files(*.mdf) require SQL Server Express 2005 to function properly. Please verify the installation properly". Can anyone  Please help me.  


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Failed to generate a user instance of SQL Server...

  
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Failed to generate a user instance of SQL Server due to a failure in starting the process for the us

  

I am trying to get an app I created in VB.NET to run on a client machine. The app runs fine on my development machine but when I copy it to a client machine I receive the error:

Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance.

I have installed SQL Server Express on both pcs with identical accounts and running identical versions.

What's strange is if I change User Instance = True to User Instance = False in the code, the app runs on the client machine but not on my developer machine.

It seems more like a SQL Server issue than a VB.NET issue.

Any ideas?

 

 

 

 

 


Failed to generate a user instance of SQL Server due to a failure in starting the process for the us

  

This seems to be a common problem but I've tried everything I could find in all the posts on this topic with no luck. 

The server is Windows Server 2008 running IIS7.  The ASP.NET application worked fine but it used SQL Server 2008 Web Edition (10.0.2531) and my goal was to upgrade the Web Application from ASP.NET 2.0 to ASP.NET 4.0 and use SQL Express (10.50.1600).

Here are the confirmations/changes I've made while researching this issue:

 1) SQL Server Express is running as Local System (it is on a domain controller)

 2) sp_configure 'user instances enabled', 1... was already 1, but what the heck, did it again

 3) enabled audit security logon events failure to see if it was a permissions problem

 4) attached the mdb file in SSMS to insure it was ok, it is

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       (note, I removed the ones in my administrator user folder as there wasn't one for "local system"

 6) And of course, it works fine on my developement machine, windows 7. :)

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George

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Under a network service account. I want to perform some operations on the SQL server DB.

I am passing the user id and password of the admin on that box. Still I am getting Login failed for user 'XXX'. Reason: Attempting to use an NT account name with SQL Server Authentication.

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