I read your discussion at another web site:
https://sourceforge.net/p/dxwnd/discussion/ge … 6dfc6/?limit=25
Running RUN386.EXE QUEEN.EXE at a command prompt works and outputs text of chessboard positions. Apparently, PCHESS calls these DOS executables, but I am not aware of a simple way to resolve your request.
However, Power Chess is based on a known engine, WChess. A web site source referenced below says: "In 1995 David Kittinger released his new DOS-Program WChess, also the engine of Sierra's Power Chess DOS-16bit WChess 1.06". So, it is possible to run the Power Chess chess engine in DOS, at least a very similar one, but the interface would not have the commercial grade features, such as 3d graphics. A forum post at a link below has information on WChess v1.06 for DOS.
Sources of information on Power Chess: