- Error(exceptionToMessage messageToVirtualString)
- OS(getEnv)
- XApplication at "x-ozlib://mathweb/share/XApplication.ozf"
- XOpen(server:Stream pipe:PipeGeneric) at "x-ozlib://mathweb/share/XOpen.ozf"
- LispSocket(manager:OzService) at "x-ozlib://mathweb/sys/LispSocket.ozf"
- XService(manager:ServiceManager) at "x-ozlib://mathweb/sys/XService.ozf"