P:\grantm>nmake -?

Microsoft (R) Program Maintenance Utility   Version 1.50
Copyright (c) Microsoft Corp 1988-94. All rights reserved.

Usage:  NMAKE @commandfile
        NMAKE [options] [/f makefile] [/x stderrfile] [macrodefs] [targets]

Options:

/A Build all evaluated targets         /B Build if time stamps are equal
/C Suppress output messages            /D Display build information
/E Override env-var macros             /HELP Display brief usage message
/I Ignore exit codes from commands     /K Build unrelated targets on error
/N Display commands but do not execute /NOLOGO Suppress copyright message
/P Display NMAKE information           /Q Check time stamps but do not build
/R Ignore predefined rules/macros      /S Suppress executed-commands display
/T Change time stamps but do not build
/? Display brief usage message