It'll take a little more than that to give any reasonable estimate. (Unreasonable would be "an hour to a year" type of estimates.)

Perl on Windows ... you tend to have to use a lot of Win32::ODBC and the like. Personally, I shy away from Win32 programming period, let alone in Perl.

General advice (which you probably already know) - build the Win32 stuff in components. Make sure you can connect to the DB. If you can't, then ask that question. Maybe go through 10 or 20 questions before you get all the components figured out.

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We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.