ADManagerPlus 6.3: Installation failing, Error While Unpacking

Hi everyone

I want to install ADManagerPlus 6.3 on a Server 2008R2. The server is freshly installed and I am getting an error on the step where it is Unpacking JAR Files, I get an error saying Error While Unpacking.

I have search the forums but I can't get concrete answers to the solution as it always appears like Support is taking the solutions offline. We want to try the product so that we can purchase it for our company, so please help.

The account used to install it with has admin rights. The setup is run as Administrator. All updates are installed on this server with the latest version of Java RE.

I have seen this error before but never logged anything on the forums.