Saving files back to server

Hi All I have a rather interesting thought for a website I'm currently working on. I imagine this is not going to be possible, but here goes: - Visitors can go to a page http://www.whatever.com, log in, and get a list of files in their home directory. - They click a link for a document (for example) they want to download, and it is "pushed" through to them (as it is outside the webroot). No problem so far. Excellent functionality to have would be for the user to make changes to the document, click "Save" in Microsoft Word and the file is saved back to the server overwriting the old one. It can be accomplished using HTTP PUT to a script which receives it and then copies it back to its relevant location (in the users home directory). However, the difficult part would be to cause Microsoft Word to trigger the upload whenever a user saves their file. I've seen this done in Lotus Notes, but I imagine it will be near impossible using the web. Any thoughts on the matter would be greatly appreciated. --- Adam Whitehead Systems Developer - CSM Limited Ph. (08) 8936 3165 ** Mobile (0411) 241 120 E-mail: adam.whitehead@csm.com.au