Below is the manufacturers description. One or two of you may be interested at the moment but if not I'm sure there are some who will want to keep an eye on this. There is a free 30 day trial if anyone wants to have a go. The link follows the decription.

"Welcome to the home of the SSI Model Railway Control System family of products, the closest
experience you will get to real railway control systems on your model railway.

SSI is developed by professional permanent way, signalling and computer engineers. It runs
under all current 32-bit versions of Microsoft windows.


Many modellers choose SSI because it meets their needs of:



Highly reallistic level of layout control

Looks and operates like real IECC (Integrated Electronic Control Centre) systems, commonly used across the UK and the World

Full control of turnouts and signalling

Full interlocking support which is highly configurable

Full Entry/Exit (NX) functionality

Simplifies layout wiring and reduces wiring costs

Simple and Easy control of a layout"


SSI Program.