Memscope is a full version, unlimited use memory tester - and the key to it's success is that it is operating system independent. This gives the most accurate results possible, as it can test parts of the memory that other O/S dependent utilities cannot even see. You can download it on the following link and either save to a floppy or burn to CD.
Full Specifications
What's new in version 1.1
General
ReleaseNovember 7, 2008
Date AddedMarch 1, 2007
Version1.1
Operating Systems
Operating SystemsWindows 95, Windows Vista, Windows 98, Windows Me, Windows, Windows XP, Windows NT, Windows 2000, Windows 3.x