The easiest way I found for myself was to download the IO-Stringy-2.109 - just google it.
Than extract the the lib\IO folder into your C:\perl\bin\lib\IO
The IO-Stringy file contains some .pm files, including those that are needed for IO::Scalar.
At the DOS prompt, just use: perl -MIO::Scalar -e "print 'Installed'"
to make sure your ready to go...
