Hello, i am having trouble playing games i have downloaded, have been told to open a dos box could someone advise please, thanks.

You should look up the site's FAQ before asking such questions. That should help you. Dosbox is a program, you'll have to download it first, it's available here in Abandonia, under the Programs link, I think.

http://www.abandonia.com/forum/index.php?showtopic=5684

EDIT: I'm not sure if that's the best thread on the topic, but if it isn't, just look at the "Look here first" thread in the Troubleshooting forum. You should find everything there.

And here's the link to Anubis' DOSBox tutorial, which gives you a rough idea of what you need to do.

Newbie Guide to DOSBox.

For more precise answers please post a more precise question. :)