The following run-time switches are specifically for use with OO programs.
| d | Debug switch |
| f | Set name of trace file |
| g1 | Set guard pages before Object-Storage section |
| g2 | Set guard pages after Object-Storage section |
| l | Class Library load switch |
| t | Generate trace file |
To set OO run-time switches, use the environment variable OOSW. For example, the following turns off the v switch and turns on the d switch:
set oosw=-v+d