AVS Audio Editor failed to install on Windows XP

Hi Experts,
I am not able to install the AVS audio Editor on my computer using windows XP and I get the following error message claiming to have encountered an error while attempting to replace a file. I tried uninstalling and then reinstalling a couple of times. But this did not solve the issue. I am logged in as administrator and have full permissions on this machine as well. Then I used a clean utility to completely remove the traces of partially installed software and downloaded a fresh copy of the installer. I also manually verified that all the files related to this installation have been removed. Finally I tried installing it again on my machine. But nothing seems to work, I still get this error. I tried closing all open programs too. But I had no luck even now. What next? Can somebody suggest a fix for this frustrating issue? I have exhausted all my possibilities. Thanks a million.
Image :

Error:
C:Program FilesAVS4YOAVS4YOUHelp.chm
An error occurred while trying to replace the existing file:
DeleteFile failed; Code 32.
The process cannot access the file because is being used by another process.
