Share tab missing

[Guest Dean]

I have a small network of 3 machines all running XP Pro. I installed SP3 on

machines A and B I had it installed on Machine c but uninstalled it because

of a conflict with a program that I need to run on a daily basis. I would

also like to uninstall it from Machine B but when I do I am unable to get to

the internet. Now for the real problem. Since attempting to uninistall and

reinstall SP3 on Machine C the "Share" tab is gone from the Properties

configuration window. How can I get the share tab back??