You may want to try this and see if it fixes it [note: You will need the XP Pro Installation Disk to do this.]
Go to Start, then Run.
Copy and paste the following code into the box and press Enter:
Code:
RUNDLL32 ADVPACK.DLL,LaunchINFSection %windir%\INF\communic.inf,HypertrmUninstall
This will remove HyperTerminal.
To reinstall it, enter:
Code:
RUNDLL32 ADVPACK.DLL,LaunchINFSection %windir%\INF\communic.inf,Hypertrm
. In the dialoge that comes up, click "Browse" and browse to the I386 directory on the install CD, and click Open.
Click OK,it should now reinstall it for you.
Let us know if this works.