The Install.exe file is used to install Client Server versions of Business Rules!.
Install.exe may be found as part of the 418g_winsvr.zip found on 
This is the BRListener.exe Installer for NT Server (can be found at the bottom of [br_version]_WinSvr.zip on the web site download section ())
This program is used to launch the BRListener.exe process as a service. BRListener.exe must be in C:\Windows and BRListener.conf must be configured and located in C:\Windows\System32.
The /Release parameter can be used, like:
to stop the BRListener.exe process.