You should have 6 files for ALIAS:
ALIAS.DOC This file
ALIAS422.COM TSR utility
ALIASHLP.COM Detailed help for ALIAS422.COM
ALIAS!.COM Single-screen summary help for ALIAS422.COM
MEMMARK.COM Memory mark and clear utility. Type `memmark' for usage.
PCMAP.COM Displays list of TSRs currently loaded.
All but this file should be contained in ALIAS422.EXE (self-extracting).
After extracting the files, first run ALIASHLP.