You cant just download a program because you have to buy it. Your computer already has a word processer called notepad but this is very limited. Another way is to download it of a program called kazaa but this is illigal get this from www.downloads.com. hope this has helped!!
If you have a Universal subscription to MSDN you can download Microsoft
products like Microsoft Office but the subscription cost around $2700 USD so
there isn't much point. Microsoft Works 2003 and 2004 both include Microsoft
Word and runs around $100 USD.
Another option is to give Open Office a try. The download is large but it is
an excellent alternative to Microsoft Office and is free with no nags,
spyware or parasites. You can easily configure it to open and save in
Microsoft file formats http://www.openoffice.org/product/
Unfortunately the spellchecker will not integrate into Outlook Express but
this free speller will http://www.geocities.com/vampirefo/