Multidimensional Realities - various OBE phenomena explained

[Rudolph]

Jdownloader set off my spyware/virus alarms

[Stookie_]

I downloaded it, but it won't open, bcs the extension is unknown to my computer.

You need to extract it with something like 7zip. After installing 7zip, you can right click on the file and there will be 7zip options for where you want to extract it to.
http://www.7-zip.org/