Hoster and other program problems

[Roy Dennis]

The latest release version for download is 5.10 there is no 5.11 to my knowledge except as a beta for testing.

I have experienced what you describe once myself regarding Hoster disappearing but still showing as running in task manager. As it only ever happened to me that one time I took no notice of it. I selected Hoster from the applications tab list and chose "End task" then restarted Hoster.
Does this happen to you regular ?

Regarding your registration problems.
When you say "I booted off my backup hdd " Hoster is designed to run from the C\drive, reading your post it sound like you are installing Hoster on various different drives on the same computer, is this the case ? if so this might be why you keep getting this problem with registration.