Access Denied in .NET web application after applying Security Patc

I've been asked to fix a problem with a web application residing on a
client's Windows 2003 server that is now denying access to the SQL database
after windows security patches were applied to the server.
The patches that were applied are:
Security Update for Windows Server 2003 (KB885836)
Security Update for Windows Server 2003 (KB870763)
Security Update for Windows Server 2003 (KB885835)
Security Update for Windows Server 2003 (KB873339)
And the exception message I'm receiving is:
System.UnauthorizedAccessException: Access is denied.
at System.EnterpriseServices.Platform.Initialize()
at System.EnterpriseServices.ResourcePool..ctor(TransactionEndDelegate cb)
at System.Data.SqlClient.ConnectionPool..ctor(DefaultPoolControl ctrl)
at System.Data.SqlClient.PoolManager.FindOrCreatePool(DefaultPoolControl
ctrl, IntPtr SID) at
System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnec
tionString options, Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnection.Open()
at RollingThunder.RTOQuery.OpenConnection()
at MatterMgmt.History.StatusByDate.ShowSelectedDayPurchaseOrders()
in c:\inetpub\wwwroot\mattermgmt\history\st
atusbydate.aspx.cs:line 72
The exception is being thrown when trying to open the connection to SQL
(RtoQuery.OpenConnection();) when making a simple Select query.
I've been at this since yesterday now and any help would be really
appreciated.
Thanks in advance!
~ LouisHi Lou,
Try creating a test ODBC DSN and see if you get an error message. Reply
back with the entire message.
Thanks,
Kevin McDonnell
Microsoft Corporation
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