Erm.... Strawberry Perl comes with DBI already included, in its current version, so there's no good reason to install it. The release notes of Strawberry Perl are really helpful for finding out which CPAN distributions and which external libraries are included. You might want to "Expand" the "List of distributions installed on top of Perl 5.32.1" or the "List of external tools and libraries included in Strawberry Perl" for details. It's amazing!