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You can find a lot of debugging and deploying problems while developing applications in .NET and Visual Basic here. There are also some querying tips in SQL and typical source codes which might be useful shared here.

Error displaying report

Error : C:\DOCUME~1\STEVEN~1\ASPNET\LOCALS~1\Temp\temp_c31eb8a4-2e63-4b42-b43d-c91550cca5b4 {25A8AD89-FCF3-4B82-A544-375DE1838F98}.rpt: Unable to connect: incorrect log on parameters

This problem is quite typical, and happen under some typical conditions. I was using crystal report to view a report on a web page, and the connection used for the report is ODBC. I had made the ODBC on User DSN tab, yet the error still occurred. Have to create ODBC on System DSN.

Solution : Add ODBC to System DSN (on the server where the application is located), and make sure the connection in the application is using valid username & password.
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