Int 2F Fn C018  U - Printcache V3.1 Pcache.exe - ???                       [c]

   AX = C018h
   ???

Return: BX destroyed
   ???

Note:  the first instruction of this function is an indirect jump which points
     at a RET by default

See Also: AX=C000h"PCACHE",AX=C019h"PCACHE"