Hi all,

I was wondering what kind of licensing schemes others have employed in their web applications. More specifically, I'm currently working on one which is licensed per seat.

Yeah.. a web app licensed per seat, I know

The problem is obvious, since the application runs pretty much completely server-side I've only got the variables the browser feels like sharing to limit access with.

Currently the app records the ips logging in in a database table and denies access when number of logins from different ips > max allowed. Since a lot of our clients use DHCP I'm pretty much forced to clear these logs on a daily basis. Besides that, it's trivial for an admin to clear the table containing these in the database manually.

As a result we're currently effectively getting the shaft at some sites, where it would be much more interesting for us if they were forced to upgrade.

Are there any other ways one could limit the number of unique logins? Besides going for site-licenses? We can't use ActiveX since they're often not allowed by the IT depts at these companies, we can use cookies but clearing those is even more trivial than above method. Any others?

Comments muchos appreciated.

Geoff