Mounting Images using IMAGEX

I used to be able to mount *.WIM files using the following command:

imagex /mountrw c:\boot.wim 1 c:\MOUNTED_IMAGES

When I attempt to run this command, I get the following error(s):

C:\IMAGES>imagex /mountrw c:\boot.wim 1 c:\MOUNTED_IMAGES

ImageX Tool for Windows
Copyright (C) Microsoft Corp. All rights reserved.
Mounting (RW): [c:\boot.wim, 1] ->
               [c:\MOUNTED_IMAGES]
Error mounting image (RW):
The system cannot find the file specified.
C:\IMAGES>PAUSE
Press any key to continue . . .
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obviously a batch file i use to run the command, but the "C:\IMAGES" I've read that it was because the Waik needs to be installed (in which it was and WAS working at one point)...but now isn't...

I DO have the "Boot.wim" sitting in the C:\ root, but still acts like it is not there....I'm Lost!!! Also if it helps, I was getting errors that I do NOT have permissions to access the file.

Thanks!!
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