Adobe Reader Error 1606: Could Not Access Network Location

As I was trying to install Adobe Reader and Java TM 6 Update 24, I kept receiving
Error 1606: Could Not Access Network Location".
This also occurs when uninstalling MS-Office 2007.
I’m running a Windows XP computer.
I searched on the net and found out that it has something to do with a wrong registry key.
Please tell me what to do.
Thank you.
