PROPATH and other standard OpenEdge environment variables
When you install the WebSpeed Transaction Server, the installation process sets the PROPATH for you in the ubroker.properties file. PROPATH initially includes a number of subdirectories in your installation directory. In addition, the PROPATH includes a dot ( . ) directory reference. When the agent sees the dot, the process substitutes the name of its current working directory. For example, the agents resolve the dot to their broker's default directory, which is the working directory.
You can override installed PROPATH settings using the PROPATH property in the properties file (ubroker.properties).