Win2k is not letting you install that software because it was not meant for this os. It does not support ntfs as far as I know so if you are using that file system you wouldn't want to install it anyway.
Systemworks 2000 was built for 95/98 and not nt. Win2k looks like 98 but it ain't.
What do you want system works to do for you that you want it installed?
There may be better options to use with this os.
good luck,
dang