francis@csli.Stanford.EDU (Dave Francis) (08/31/90)
Hello! I need information about how to protect my application from being run multiple times on a network. The behavior I'm looking for is seen in 4th dimension where you can't run more than one application at a time on the network unless you buy more than one. Do I need to know a lot about AppleTalk to implement this?? Thanks for any help, Dave Francis - Sapphire Design Systems
Jim.Matthews@dartmouth.edu (Jim Matthews) (08/31/90)
In article <15105@csli.Stanford.EDU>, francis@csli.Stanford.EDU (Dave Francis) writes: > I need information about how to protect my application from being run > multiple times on a network. The behavior I'm looking for is seen > in 4th dimension where you can't run more than one application at > a time on the network unless you buy more than one. The behavior exhibited by 4th Dimension isn't something that any network administrator is looking for -- 4D floods every zone of an AppleTalk internet with broadcast packets, which translates to bothering 6,000 computers on a network like ours. If you want to be sure that only one copy of a program is running on an internet you should think about having a central server that the application registers with. In fact, such a system (called the KeyServer) is available from Sassafras Software (603-643-3351, or denisd@dartmouth.edu for e-mail). I believe that the University of Michigan has a similar system called LaunchBreak. Jim Matthews Dartmouth Software Development Disclaimer: The developer of the KeyServer is a colleague of mine. --