PADE will not run unless appropriate environment variables have been set. Furthermore, PADE relies on several ``helper'' programs (not unlike NCSA Mosaic) so that its full functionality can be realized. The helper programs referred to here do not include X-Windows, PVM, and Tcl/Tk which are essential for PADE to run. Rather, these programs enrich the parallel programming environment that PADE provides but are not needed for PADE to execute. The required environment variables and helper programs that can be used by PADE are described below.