Can anyone tell me what i would have to edit in the .desktop file (emelfm2 specifically) to get it to launch using root priveleges? I use leafpad if that makes any difference. I already know how to edit them as i have changed names and icon paths and such, I just need to know what line i need to add or change to get it to launch with root priveleges.
Id greatly appreciate any help.

Put "sudo" in front of the command. (assuming you have something installed to gain root).