I assume by "compress" you mean decrease the file size. Your software should be able to do that. It depends on how you save it out (render) and the specific features that are a part of your software.

I would recommend saving it as a WMV file. Most packages have presets that are named in a way that relates to connections speed. (For the viewer that may be downloading the file.) Look for a preset that suggest a 256 connection. That is usually a good compomise. I usually render my videos in both 256 and 1M. (In actuality, the number means nothing. Render in the lowest resolution that gives you acceptable image quality.)

Hope that helps.