PM DOS API translator allows the protected-mode program to call DOS services directly, via the familiar int 21h and similar techniques. While it may be a part of the DOS extender, the common practice is to put it directly into a DPMI server instead, to save the DOS extenders a great deal of work. Unfortunately, many DPMI servers do not contain the DOS API translator, and as a result, some DOS extenders fail to run. This is a port of dosemu's DOS API translator, that can be installed as a TSR to provide the API translation services to protected-mode programs.