The new Information Design Tool (IDT) in SAP BusinessObjects Business Intelligence 4.0, like the other client tools in the suite, is a 32-bit application. Even if the IDT is installed on a 64-bit version of Microsoft Windows, it wants to use 32-bit ODBC DSN’s created with the 32-bit ODBC panel, not 64-bit DSN’s. If you attempt to create a new universe connection and specify a 64-bit DSN name, the following error appears.
[Microsoft][ODBC Driver Manager] The specified DSN contains an architecture mismatch between the Driver and Application
To resolve the issue, make sure you’re using the 32-bit ODBC panel (see related article) at
C:\Windows\SysWoW64\Odbcad32.exe. If you are running the client tools and server on the same platform, create a 32-bit ODBC DSN for the Information Design Tool and a 64-bit ODBC DSN for the server (BI Launchpad, Web Intelligence Processing Server, etc.). Make sure both DSN’s have identical names.
Remember that Crystal Reports 2011, Crystal Reports 2013, and Crystal Reports for Enterprise clients are also 32-bit. If they are installed on the BI4 server (which is supported, but oddly enough not recommended), they will also require 32-bit ODBC connections even though the Crystal Reports Processing Server requires 64-bit ODBC connections.
Having fun with 64-bit Windows and ODBC? You may find my other articles on ODBC helpful.