how to remove one file from attachments?

Hello users, 
Is there a possibility to "cut" email-attachments named "winmail.dat"
out from messages, that comes in but without touching the rest of the
message (only remove winmail.dat)?

Thanks a lot for all ideas and help.
Greetings, Raphael

I use the following procmail-rules:


## TNEF Attachments
:0
* ^X-MS-TNEF-Correlator
* ^Subject:\/.*
{
        :0 fhw
        | formail -i
        "Subject: {* -winmail.dat- *} $MATCH"

        # there is the problem to cut the file...
        :0 f
        *
        # cut the file
        # forward the message through the rest of procmail-filters
}

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