Ho to remove completely gdipp

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How can I remove completely gdipp from my pc (windows 7 home professinal 64 bit)

After uninstalling gdipp with the windows internal uninstaller program the file 
C:\Program Files (x86)\gdipp still exists and in the task manager the processes 
gdipp_hook_64 and gdipp_hook_32 are still active after the resart of the system.

Unfortunately it's not possible to delete the file C:\Program Files (x86)\gdipp 
by hand because I get the noficiation the file is open in another program...

Thanks for your help

Original issue reported on code.google.com by mheis...@gmail.com on 17 Jan 2015 at 8:43