The Network Licensing option
In the Professional Edition of SoftwarePassport/Armadillo, you have the option of setting a "limit copies" number for a certificate. This is a simpler way to help you enforce your program's licensing agreement than hardware locking.

How is this different from the hardware locking option?
The hardware locking feature is the most secure that SoftwarePassport/Armadillo can provide, but it can also be a pain to support... if the user upgrades the computer, you have to re-issue the key. If the user wants to run the program on five different computers, you're forced to issue five separate keys. You have to get the hardware fingerprint code for the user's machine before you can issue the keys. All this makes hardware-locked keys very difficult to manage.

The Network Licensing option (previously known as the Limit Copies option) offers a simpler way to protect your work. You can offer a company a single key which will unlock between 1 and 255 different computers at the same time, and let SoftwarePassport/Armadillo take care of enforcing the number. In the peer-to-peer model, the user is responsible for entering the key on all the computers using the program; in the client/server model, he or she only needs to enter it on one system, and you can combine it with hardware-locking for the most possible protection.

How does it work?
The Network Licensing option uses the customer's local-area network (LAN) to confirm that no more than the specified number of copies are running at the same time using the same key.

Why might I choose to use (or not use) it?
There are several considerations. First of all, can you use it? To make effective use of this option, the customer's computers must be on a LAN. With the peer-to-peer model, they must share the same primary domain or workgroup, and must be using the same key -- a different key will allow that many more users to use your program, even if it's for the same certificate. For the client/server option, they all must have the TCP/IP protocol installed.

How do I use it?
The usage is different depending on which model you use. You can find more information about using them by clicking the appropriate link, peer-to-peer or client/server.