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2 No stack segment defined, zero used


   Under DOS, the desired stack location of a program is kept in the
   .EXE file header.  This is used to set the SS and SP registers when
   the program is executed.  PLINK86-Plus looks for a stack segment
   marked as such by the compiler or assembler being used.  If found,
   its eventual address is placed into the header.  If not found, zeroes
   are used and the program probably will not function correctly unless
   it sets the SS and SP registers itself.  Even then, the program could
   crash if an interrupt occurs before it sets up a valid stack.