Installation issues. "Not a valid Windows installer package"

When i attempt to download Path of Exile the installer itself appears to be in a format that windows 8 (or at least my system) won't accept. The error message reads "This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package"

I have a brand new system that can handle intense games like SOASE. and its all good tech. I have to assume that I have some software issue or it's an issue on the dev. end. I hope this helps resolve the problem, as I'd really like to play.

If there is any information that would assist id be glad to help.

I'd like to tell everyone having a similar issue that I got mine working within minutes of posting this, but to be honest i didn't do anything to provoke a change. Sorry i couldn't help but IDK what i did differently.

GOOD LUCK :D