Component not correctly registered

I just downloaded and I am trying to install ver 1.0.2. During the install, I get an error while it is trying to register the software. The mesage box says, "Component not correctly registered". The install does finish but when I try to open or print to my PDF printer, I get that same error. I also tried ot download 1.0.1 and I get the same error.

I have tried to go back to the version I had installed, 0.9.5, but I get an error everytime I try to use that version. The error is "Unpected error, quitting"

Thanks