myDSL Extensions (deprecated) :: dos emulator

Is there any dos emulator for dsl? I have a dual booting system, but I'm usually in dsl. My computer has no cd drive(that works), so I have to slit files onto floppies and use rar for dos. Is there anyway I can do this in dsl?

There's RAR for Linux from http://www.rarsoft.com/
It's shareware, or trial software or something, but it apparently works.

Is there any other rar clones or dos emulator, I plan on using the software more than what the trial period is on LinRar ;).

There's DOSemu....I don't know anything about it to recommend one way or the other.
http://sourceforge.net/projects/dosemu/

Do I have to do anything special to run it? I already have it on my system, but when I try to run it, nothing happens... It looks great btw.

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