How can I get data from an environment variable in sed SCRIPT FILE? (under MS-DOS, not UNIX)

[email protected] Thu, 23 Oct 2008 22:57:43 -0700 (PDT)

Newsgroups	gmane.comp.gnu.utils
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Message-ID	<599e8ce9-540b-4c30-9d50-accc29545ff9@f40g2000pri.googlegroups.com>

I'm using GNU SED for windows
and made a batch file like this...

    Set myTemp_Value="Hello world"

    SED -n -f mySedScript.TXT   targetFile.TXT


but...
How can i use DOS Environment variable in SED Script File?


Is there no way to use myTemp_Value in mySedScript.TXT ??
as far as i know,  an environment variable is available in unix.