I already installed it on windows xp for testing, and i was about to try and install it on windows server 2008 until during my testing i found out that openemm newest version (5.5.1) does not support newsletter written in russian - correct me if i wrong
The problem is the system dosn't recognize Cyrillic.I placed the HTML text in the body text box and title, both contained English characters (a HTML tags) and Cyrillic (the text in Russian). After the mail has been saved and opened in the preview window, the mail looked like a set of query marks.
As I see it the system enable to recognize Cyrillic.
if you give me your email i will send you screenshots.