An alternative to the installer is another version. All you do is unzip & then use. However you must have the most recent JRE java version installed on your system.

Download ‘Other’ version & simply unzip & use!

Do you have spyware program on your computer? Some anti spyware programs are also anti p2p sharing programs despite they have no spyware. It's either poor programming else, the programmers themselves are against p2p sharing (yes I've read one spyware programmer admit it.)