About transferring files
Google Talk allows you to send files to your friends, right from your chat window! You can share photos, videos, or documents with the click of a button - there's no restriction on file size or file type. Sending a photo will insert a preview of the image directly into the chat session, so that your friend can see it right away. Other file types can be opened from the chat window, and will launch in their default application*. They'll also be saved to your hard drive for later.
Learn how to transfer your files.
Your intended recipient needs to be using Google Talk as well. If they're Windows users who are currently using another client, you can tell them to download Google Talk at www.google.com/talk.
*Launching file types from the chat window is not available for Windows 2000