We the FreeBSD operating system on some nice Dell servers.
Due to security, cost, and stress concerns, we have absolutely no plans to run or support any Microsoft Windows-based servers. In fact, we may even get slightly offended if you ask us about it.
On the software end we run the Apache Webserver, MySQL Database Server, PHP, Sendmail, and Darwin (Quicktime) Streaming Server to name a few.
See our Services page for version information.