How do you set up Pushpool/Litecoin for windows?
It can be done. There are windows equivalents for all of the programs you need to install.


Cron. Normally, I'd tell you to use the task scheduler, but it looks like the program you linked needs to run stuff every 5 - 8 minutes. This tool seems to do  what you need. You'll need Perl too.
PHP. Note that you need to use the command C:\PHP5\php.exe -f  instead of php.
MySQL.
Apache2.