In MOSS we have done all of this to increase the file upload size, reset iis but still doesnt want to play = anyone any advice.
UPDATE
Just seen the Scott Gu article - http://weblogs.asp.net/pscott/archive/2009/02/26/404-errors-with-fileupload-with-iis7.aspx and JS example http://msmvps.com/blogs/cgross/archive/2009/02/25/large-files-in-sbs-2008-s-companyweb.aspx
So need to say this is II6 on win2k3
Update 2
still not working at a loss anyone help?
In SharePoint 3.0 Central Adminisration, Application Management tab, and Web application general settings configure the Maximum upload size to a maximum of 2047 MB. - We set ours to 250MB
In Internet Information Services on the properties of the virtual server increase the Connection Timeout to greater than default 120 seconds depending on the time to upload large files in your environment for example, 360 seconds. - We set ours to 600 Secs
Configure the web.config for the _layouts web.config with On the SharePoint server change C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\TEMPLATE\LAYOUTS\web.config with an executionTimeout appropriate for the file size you are uploading. An example is included below. from: to: executionTimeout="999999" maxRequestLength="2097151" />