I have written a new scan engine to address the problem of hanging on large scans. This new process leverages dynamic JavaScript includes to break the scan job into smaller pieces that your server can handle more easily. For most people with the hanging scan problem this new version works great but I have seen one site with over 100,000 files where the heavy JavaScript caused the client's browser to crash. So, this update is not for everyone. This plugin now has over 10,000 downloads and I don't want to release a questionable update on so many people. I will continue to work on it for a future release but it will only be available upon request until I have it working better. If your scans are hanging up before reaching 100% then contact me and I'll get you the BETA.
Keeping this plugin cutting-edge with new features and up-to-date with the latest definitions for removing new threats is a lot of work. Please make a donation to support my continued development and enhancement of this plugin.
Aloha,