Yes, that occurs sometimes with our wrapper.
Better download directly from Auslogic: http://www.auslogics.com/en/software/disk-defrag/download/
Don't click on the CNET button but use the 'directly from this website' link a few lines lower.
Problem solved and no unwanted software (some call it spyware) added to your PC, as done by the wrapper that (luckily) won't run.
Kees
Downloaded cnet disk-defrag-setup exec.exe to download new version of Auslogics Disk Defragger. When I OPEN it, I get:
Installer Error
Unable to initialize installer GUI
I am running XP SP3 with FireFox 7.0.1.
Older version of Auslogics is already installed and runs.

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