>>>>After couple of un-install and re-install it did work. So now I'm getting different errors (one is coming from the files - something about Option). I also got another error when I tried to scroll the form using scrollbar.
>>>
>>>A little vague. :o) Perhaps it would be easier for him to help you if you took a screen capture of each error and included the images in your message :o)
>>
>>I don't have a subscription - can not upload the file.
>
>You can email them to Greg, but he probably can't help since he doesn't have windows 7 64 bit. Perhaps someone else who does can test installing GKKCompare...

He already did, besides, I already got it working - e.g. it installed correctly. I think the trick was in installing everything (originally I tried without MS and XML files) and also in Running as Admin. I'm now having different kind of errors which are not critical.