IT Hit just launched the Beta version of their web-based file manager.
Certainly the ability to create, edit, and save Microsoft Office Documents on the server–without downloading the file or any plugins–is the most immediately useful feature.
Unfortuntely, the Microsoft Office integration requires Internet Explorer; however, I successfully used the IE-Tab Firefox extension to edit a Powerpoint deck within Firefox. Try it yourself at the demo site–no registration required.
On the backend, the file manager uses the WebDAV XML protocol to exchange data with the server. It will run on any WebDAV-compliant server based on .NET Framework, Java, PHP, or any other programming language.
The pricing varies depending on your needs, and I found it a little complicated to interpret–but don’t expect to get started for less than $1250.
Update: IT HIT e-mailed me to clarify pricing.
Our main target audience are the developers of DMS/CMS/CRM systems that require standards-compliant communication with a server for file management. For such customers we provide a Redistribution License: $2250.
Usually this license is for customers that want to redistribute IT Hit AJAX File Browser as part of their product.
Users that want to install AJAX File Browser on a single website (single domain name) can purchase Single Server / FQDN license: $1250
Often our customers require both client and server WebDAV library, so we also provide packages with significant discount:
IT Hit WebDAV Server Engine for .Net Redistribution License + IT Hit AJAX File Browser Redistribution License: $3350
IT Hit WebDAV Server Engine for .Net Single Server License + IT Hit AJAX File Browser Single Server / FQDN license: $1950
More info on the AJAX File Browser Homepage.