Ordinarily, you'd only prefix a variable's type with the application name if the code will or might be run from a different application - especially if both applications have the same variable type. For example, both Word and Excel have Range objects. So, if the code was being run from Excel, you'd need to indicate when a range variable refers to a Word range to avoid it being treated as a reference to an Excel range.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]