Error while setting the latest version of Blackberry Desktop Software

Hello,
I am ready to set up the latest version of Blackberry Desktop Software. When the installation process is in 75%, then the following error message occurs.
The feature you are trying to use is on a network resource that is old available.
Click ok to try again, or enter an alternate path to a folder containing the installation package Blackberry Desktop software.msi’ in the box below.
The 'Use source' is C:DOCUME~1adam.guyLOCALS~1TempWZSE0.TMP"

Please give a solution.
Thanks a lot.
