RunRexx( <cScriptFileName> [, <cArguments,...>] ) --> xReturn
RunShell( <cCmdLine>, [<cProgram>], [<lAsync>], [<lBackground>], [<aStdHandles>|<lInherit>] ) --> xReturn
RunRexx( <cScriptFileName> [, <cArguments,...>] ) --> xReturn
RunShell( <cCmdLine>, [<cProgram>], [<lAsync>], [<lBackground>], [<aStdHandles>|<lInherit>] ) --> xReturn