Exception Details: System.DllNotFoundException: Unable to load DLL (oci.dll).
Source Error: Line 133: 'Dim myCommand As New OracleCommand(mySql, myConnection) Line 134: 'myConnection.Open() Line 135: OracleConnection1.Open() Line 136: End Sub Line 137:End Class Every time I have seen this error after it was because the registry entry for the oci.dll is pointing to the wrong directory/file/is altogether wrong version. Check the KB article on MTXOCI.DLL for more information. I would bet transaction based SQL calls (COM+) are not operating properly either. This is very common in an oracle app dev environment. You may also want to update the version of Oracle installer and .Net client from Oracles update center. =================================== This list is hosted by DevelopMentorŪ http://www.develop.com Some .NET courses you may be interested in: NEW! Guerrilla ASP.NET, 17 May 2004, in Los Angeles http://www.develop.com/courses/gaspdotnetls View archives and manage your subscription(s) at http://discuss.develop.com