'ml' is not recognized as an internal or external command, operable program or batch file. NMAKE : fatal error U1077: 'ml' : return code '0x1'

[Peter O Sigurdson]

Greetings,

I'm trying to compile OpenSSL for Windows.  I am using openssl-0.9.7d

Everything goes well until I get to the part about   nmake -f ms\ntdll.mak

The error message is:

'ml' is not recognized as an internal or external command, operable program or batch file.  
NMAKE : fatal error U1077: 'ml' : return code '0x1'

Can anyone advise me on how to get around this.
I am compiling on a Windows XP host using Microsoft C++ version 7

C:\openssl-source\openssl-0.9.7d>nmake -f ms\ntdll.mak

Microsoft (R) Program Maintenance Utility   Version 6.00.8168.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

Building OpenSSL
        copy nul+ .\crypto\buildinf.h tmp32dll\buildinf.h
nul
.\crypto\buildinf.h
        1 file(s) copied.
        ml /Cp /coff /c /Cx /Focrypto\md5\asm\m5_win32.obj .\crypto\md5\asm\m5_win32.asm
'ml' is not recognized as an internal or external command,
operable program or batch file.
NMAKE : fatal error U1077: 'ml' : return code '0x1'
Stop.

C:\openssl-source\openssl-0.9.7d>