[Zope] Simple, Open Source RDBMS for Windows

[Carlos A. Carnero Delgado]

Hello.

Here's the satanic plan: with a little hard work for me, I'm
converting my girlfriend's notebook office applications to Zope. She's
currently using Microsoft Office for a number of tasks, but I'm
"porting" her Excel and Access applications  to Zope (not porting
Excel, mind you; just the business logic, as well as some reporting
stuff from Access.) I have demonstrated her that it would works--and
it looks cool BTW, not to mention some stuff I have under my sleeve
for her in the future (Zope wise)

But, I've been using Gadfly as the underlying RDBMS service. I know of
its limitations (sort of). So, I'm asking you guys if there's a small,
SQL compliant to the basic level, Open Source RDBMS that runs under
Windows. Or is Gadfly more than enough for personal use?

Best regards,
Carlos.

PS. She's running Windows 2000. Tried to convince her to run FreeBSD
but that was too much to ask, so I conceded.