In the root directory of your OS/2 Warp boot drive you
may see the directories IBMGSK, IBMGSK40, and IBMGSK50.

These directories are part of MPTS and contain RSA
encryption utilities used to generate SSL certificates.
If you do not use IBM server programs that use SSL, or
the IBM VPN then it is safe to remove these directories,
and remove reference to them from your config.sys file.
As always, zip the directories up and archive them off
somewere safe before removing the directories on the off
change you find they are required.