Windows ME is a consumer class operating system. LoadRunner is a business class testing tool. Properly, it should be underpinned by a business class version of Windows (Windows NT SP5, Windows 2000, Windows XP Professional).
Earlier releases of LoadRunner supported all Win32 platforms, consumer and business alike. However, differences in the stability and scalability of consumer grade versions of Windows (Windows 95/98/ME) would dramatically impact testing, and not in a pleasant fashion.
Your organization has certainly spent a nice sum to aquire LoadRunner. Invest a little more and place a business class version of Windows on each of the hosts intended for the LoadRunner controller and the virtual user hosts. You will be far happier with the performance of LoadRunner as a testing tool as a result of the operating system change.
I have been using LR 7.5 on an XP Pro machine for a couple of weeks and it seems to work fine. Early on, there was an issue with a dll recognizing the license key or something along those lines, but there is a patch for it.
Mercury is working on an update to 7.5 that will have this patch built in and a few more monitors. It should work nicely with XP Pro.
Northway Solutions Group