Windows XP command issue

I can't use the command "certreq" in window command prompt, could someone advise how to make this command available in window command prompt?

Should I add a path in system environment or something else?

The error message as below

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C: \ Documents and Settings \ user> cd C: \ iOS

C: \ iOS> certreq-new certreq.txt newcsr.pem
'certreq' is not an internal or external command,
Operable program or batch file.

C: \ iOS> certreq
'ce开发者_开发百科rtreq' is not an internal or external command,
Operable program or batch file.

C: \ iOS>

Thanks

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Certreq command can be used as follows:

Certreq [-submit] [-retrieve RequestID] [-new] [-accept] [-policy] [-sign] [-attrib AttributeString] [-binary] [-config CAMachineName\CAName] [-crl] [-rpc] [-cert CertID] [RequestFileIn | CertChainFileIn | FullResponseFileIn | CertFileIn | PolicyFileIn] [RequestFileOut | CertChainFileOut | FullResponseFileOut | CertFileOut | PKCS10FileOut]

for more reference u can refer to here

Probably your version is not compatible to use certreq command...i prefer u use openssl command u can go to the link for more details of the parameters u may use to get your required certificated request done.... hope it helps.....:)

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From what I can tell, certreq.exe ships with the server editions of Windows. I am assuming you're using the desktop variants.

As an alternative, I suggest the use of openssl to generate certificates. Check out the documentation for more details.