I don't know this things on Windows very much, but it sort of sounds like you may need to upgrade either DBI or the ODBC driver (or both) to 64 bits architecture (and possibly to Perl 18).
Comment on Re: Strawberry Perl 64bit on Win7 crashes on DBI-function
I am working for a big company and unfortunately i myself can't choose freely what drivers to install. A big IT-department deploys harware and software for many people.
The same goes for the perl version. An upgrade took place from 5.8 (32bit) to 5.18.1 64bit. Now i'm trying to understand why this is isn't working.