Why does Crystal Report Viewer always asks for login details to Access database on WePOS operating system?

Question

I wrote a report using Crystal Reports XI linked to an Access database here C:\\MyData.mdb.

The report has one field (simplified for this example) and no sub-reports.

Answer 1

In Crystal Reports XI (possible on all version I'd imagine) I changed the Database Type from Access/Excel (DAO) to OLE DB (ADO).

I bet if I had persisted I could have set the location of the System.mdw against the reports Datasource Location in the C# code (see above), as indicated by David.

So many thanks David for the top notch steer towards the cause of this exceptionally 'niche' problem - I hope it helps someone else!

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^{Added on behalf of the OP.}