RCCService

RCCService is the method Roblox has used since 2008 to manage game servers and rendering thumbnails. It uses a protocol called SOAP to communicate with Roblox.

RCCService upon startup, v0.3.784.0 (May 13, 2008)

By default, RCCService is a Windows service. Starting in a command prompt will cause it to break without using the argument -start, which starts the service or -console which makes RCCService run in the terminal. -port [PORT NUM] will change the port RCCService hosts the SOAP interface on to [PORT NUM].

Trustcheck Registry Entry

In some early versions of RCCService, you can disable the trustcheck by going into your registry editor and editing key HKEY_LOCAL_MACHINE/SOFTWARE/Roblox. Add a DWORD value named "SkipTrustCheck" and set the value to 1, or some non-zero value. Alternatively, this .reg file can be used:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Roblox]
"SkipTrustCheck"=dword:00000001

Save it as something like skiptrustcheck.reg, and then add it to your registry.