How to extract userid/password for use in Perl?

Is there a simple way to extract the login information for a
user/password protected website for further processing in Perl scripts?
I run Apache 2.2.6 on a Windows XP system.

I am new to Apache and Perl, so this may be a trivial problem. Googling
around a bit, I only found confusing information. It seems that using
mod_perl, I may be able to solve my problem, but it seems that this
requires a binary that is compatible with my present Apache version,
which I haven't been able to find. (Reliably rebuilding the binaries
from the source is beyond my present capabilities; I'm sure I could
learn, but I neither have the time nor a C++ compiler.)

Any help is much appreciated.
Thank you.