“User-defined type not defined” error in VB in Access 2007
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I'm receiving a compile error on the following line of code: 

Dim oXL As Excel.Application

The code is in VB in MS Access 2007. The line above is the beginning of a segment to generate an MS Excel file. The obvious answer to me was to ensure that the "Microsoft Office 12.0 Object Library" is checked under Tools > References. I've done this but the error persists. Does Excel need to be installed side-by-side for this to work? What have I done wrong? Thanks in advance.