How do you install SQL Server in a remote server?

How do you install SQL Server in a remote server where you don't have the option to put a CD or DVD on the machine (or have anybody do it for you)? That is, having the ISO image.

I can think of installing a CD emulator, but most of the look like nasty software I wouldn't want on a server.

I copy the .iso to the target server then use winrar (I suppose 7zip and any number of similar products will work) to extract the .iso to a folder, then run setup from the folder in the normal way. The sort of software you install on a server isn't interested in playing games about whether or not you have a disk in a drive somewhere, it just needs to be able to find all its install files.

I've install SQL, Exchange, ISA Server and Sharepoint like this several times, just to name a few microsoft products I know it works with.

If you can remote desktop into the server, you can create a shared folder, give yourself rights to that folder, copy the contents of the cd/dvd into that folder (from your local box), then from the server (using RD), run the installer. As long as the folder paths are the same that should work.