Map manager is not showing that cod waw is on my harddrive when I try to open a UGX map.

It Says:

CoDWaW.exe Not Found

Could not find your CoDWaW.exe. This should probably be in C:\Program Files\Activision\Call of Duty - World at War\.

Help:
Make sure your CoDWaW.exe file is correctly placed in your Cod Root folder, and it is currently accessible.

Well... it is accesible, it is in the root folder, plz help.