how to make a new device in Proteus ISIS?

hi all;

i often met with a problem in proteus that the component i am using do not present in Proteus liabrary. for example PC817 is a well know optocoupler 4pin IC but it is not present in proteus and many other components as well. now how can i make and simulate the the device/component in proteous that are not available in its liabrary. i am using proteus7.1 sp2.

any help will be much appritiated.

Regards.

First check out the libraries on the forum...Chances are the device will be modeled... To make a device you need to ask for the VSM SDK, you'll need to sign an agreement.. then you need to write one....

Its easier to simulate with a generic optocoupler.