ASM Assembler source
BAT DOS Batch
C   C Source file
CMD OS/2 command file
COM Program (.COM)
DEF C Prototype file
DBG VIDEO command file
DLL Dynamic Link Library
EPS Postscript file
EXE Program (.EXE)
EXP Protected-mode EXE
FOR FORTRAN source
H   Header file
HLP Help file
IBC Configuration
LBC Librarian commands
LIB Object library
LNK Linker directives
MIF Make include file
NLM NetWare Load Module
OBJ Object file
PRF Profile file
PRS VIDEO parse file
PS  Postscript file
TRP VIDEO trap file
