As far as I know they are. The Windows 2000 EULA that came with my OEM
Windows states:
* Software Product Transfer. You may permanently transfer all
of your rights under this EULA only as part of a
permanent sale or transfer of the HARDWARE, provided
you retain no copies, you transfer all of the SOFTWARE
PRODUCT (including all component parts, the media and
printed materials, any upgrades, this EULA and, if
applicable, the Certificate(s) of Authenticity), and
the recipient agrees to the terms of this EULA. If the
SOFTWARE PRODUCT is an upgrade, any transfer must also
include all prior versions of the SOFTWARE PRODUCT.
The hardware reference is because as an OEM license Windows 2000 came
attached to the hardware. In the case of a retail version the jist of
it is probably the same minus the hardware details, and providing that
you completely remove the license on your pc before you transfer it.
The other MS software, without knowing what it may be, usually carries
similar rights.
John