#30 activate TEK unzip program on XP

[Hongfei Tian]

On a XP box, it might be necessary to logoff and login in
order to activate the TEK Unzip program during the first
installation of TEK.

[Bill Thies]

Logged In: YES
user_id=574184

Given the testing of TEK at Elsevier, I would be surprised
if this is actually an issue, but we should test it.