What is RC4toXplane?
It is a fat plugin that sits inside Xplane installation folderResourcesPlugins folder.
It provides the glue between the third party Radar Contact V4.3 ATC program and X-Plane, thus bringing an alternative to the default X-Plane ATC system to the table.
The problem
If you have owned Radar Contact ATC, you may have attempted running it with X-Plane, only to be met with a disappointing error message.
Cannot link to FSUIPC or WideClient
Add to that, many X-Plane users are frustrated at the primitive Native ATC provided with XPX and you have a scenario for a lot of frustration.
One of the RC4toXplane duties is to fool RC4 into thinking X-Plane is FSX for which it was designed.
RC4 will then be able to connect to X-Plane.
Radar Contact ATC has just become freeware.
You can download and activate your copy here for free.
https://www.avsim.com/forums/topic/547732-radar-contact-and-jdtllc-in-transition/
X-PLANE 11 & X-Plane 10
Windows Vista and higher ONLY