Hi,
I did this Office XP witht hat great tool office shrinker, and I tried to install it in Virtual Machine and kees saying some files are missing. But when I uninstall my copy of xp from the real machine and re-install using the shrinked office it works fine. Any reason why?

if you know it works fine on your machine I wouldn't worrie to much, but i would ventur a guess that Office shrinker removes some device support that it needs on the VM, but i really can't say how office shrinker works

Well it's not ok!
When you uninstall office in the real machine, some files remain.
For me mate, it was vice-versa.... all was ok in the Vmware and I had problems in the real PC.
So you should copy those files manually (there are not too many of them) in your shrinked office source.
Anyway, if your shrinked office works on a clear real machine install (no previous versions of office installled or uninstalled on it), then it's ok.