ReTeMa & linney,
As win 2000 & XP share many settings I believe this is not supported. Which MBR would be predominant? Still many non-supported items are possible.
From: Description of Supported Dual-Boot Configurations Between Windows 2000 and Other Windows-Based Operating Systems
"Dual-boot configurations between the personal operating system platforms (Windows Me, Windows 98 Second Edition, Windows 98, Windows 95 OEM versions, and Windows 95) are not supported. For example, Windows Me and Windows 98 cannot be installed on the same computer and you cannot boot from one personal operating system to another. These operating systems share the same Io.sys, Msdos.sys, and Command.com files. Also, multiple-boot configurations of Windows NT, Windows 2000, and a personal operating system, for example, Windows Me or Windows 98, are not supported.
You must install each operating system, for example, Windows 98 and Windows 2000, on a different partition. Multiple operating systems on the same partition are not supported.
It is recommended that you install your personal operating system first, for example, Windows 98 or Windows Me, and then install Windows NT or Windows 2000. This step ensures that the Windows NT or Windows 2000 boot sector is not overwritten."
rvnguy
"I know everything..I just can't remember it all