assume txt=text/plain
assume sgml=text/sgml
assume css/text/css
assume gif=image/gif
assume jpeg jpg/image/jpeg
assume png=image/x-png
assume mpa abs mpega=audio/x-mpeg
assume mp2a mpa2=audio/x-mpeg-2
assume ra ram=application/x-pn-realaudio
assume mpeg mpg=video/mpeg
assume mpv2 mp2v=video/mpeg-2
assume qt mov=video/quicktime
assume avi=video/x-msvideo
assume eps ps=application/postscript
assume pdf=application/pdf
assume jar=application/java-archive
assume class=application/java-vm
assume tar=application/x-gtar
assume zip=application/zip
assume js=text/javascript
assume pl=application/x-perl
assume ppt=application/vnd.ms-powerpoint
assume bin uu=application/octet-stream
assume swf=application/x-shockwave-flash