Hello,
I remember a thread, but could not find it back, where someone had the same problem as me at the time that it seemed not possible to get MDL 10.0 running within VMWare.
Just to let anyone interested know that now it is possible. It seemed to have to do with the 2.6 kernel that was not supported. In the latest version of VMWare it is (I'm posting this from MDL 10.0 OE running in VMWare 4.5 on Win2000). The good news is that if you have a license key that works for 4.4, you can download 4.5 for free and the 4.4 license key will work also for 4.5. So no money required! Just when uninstalling 4.4 indicate that you DO NOT want the license key to be removed.
Ciao,
Sitor