Error “regedit” in installing Cucusoft

Hi,
I was installing the full version of Cucusoft iPhone Tool Kits on the Microsoft windows I am using.
But during the installation an error “regedit” has been displayed for some reason.
I have tried to re-open the installation from the system administrator and have tried three times, but it has not worked as yet.
This is a screen shot.
Please help, thanks.

