There's lot of documentation for this in the internet. But i will mention in brief.

STEP 1: Download Nmake from http://johnbokma.com/perl/make-for-windows.html
STEP 2: Install the executable and you will get two files - NMAKE.ERR & NMAKE.EXE
STEP 3: Copy both the files to the /bin directory of your perl installed location. In my case, its C:\Perl\bin
STEP 4: Download the perl module from CPAN
STEP 5: Extract the module in some folder, preferably in C:\temp folder
STEP 6: Open command prompt and browse to the temp folder and into the extracted module folder.
STEP 7: Run perl Makefile.PL, nmake, nmake test and nmake install

This should install the module