it says everytime i try to patch it, it is currently at version 1.14 and when i click battle.net it loads up then when finish it says this

This patch upgrades Warcraft III Reign of Chaos from the previous version.

ERROR: unable to open source archive 'C:\Program Files (x86)\Warcraft III\war3x.mpq'

RESULT: Patch failed

and befoire that it comes up with something like unable to find a file or something please reply asap
thank you.

Can you tell us more information about your computer? You can find most of the information if you go to Start -> Run -> type dxdiag and press Enter.

I'll need the following info:
System tab
Operating system:
Processor:
Memory:
DirectX Version:

Display tab
Name:
Version:
Date:
DDI Version: