[Wine] .NET Framework

[Hipp0]

I am sorry if this has already been answered elseware however I dont seem to be able to find a solution. I need to install .NET 3.5 or higher yet I am having no look in doing so, I have found this screen shot http://appdb.winehq.org/appimage.php?iId=22902 of it installed yet I cannot find anything about it. 

Iv heard that a couple of people have managed it but im still having no look.

Any help from anyone would be much appreciated.

p.s. just to let you know im a bit of a noob with ubuntu and using the terminal and everything so if anyone can help me would you please be able to explain it in simple terms, thanks :)