Composer installation exe.php error in latest version

What does your PHP.INI file look like on line 1030?

; For Unix only.  You may supply arguments as well (default: "sendmail -t -i").
; http://php.net/sendmail-path
sendmail_path = sendmail_path ="D:\wamp64\sendmail\sendmail -t -i"

; Force the addition of the specified parameters to be passed as extra parameters
; to the sendmail binary. These parameters will always replace the value of
; the 5th parameter to mail().
;mail.force_extra_parameters =

Thanks expert i solved problem.

For the record

sendmail_path = sendmail_path ="D:\wamp64\sendmail\sendmail -t -i"

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Should be

sendmail_path ="D:\wamp64\sendmail\sendmail -t -i"

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@kulwant
I see this is your first question, welcome to EE.

It appears you have the solution to your problem. If so can you close the question by either accepting an answer (which can include one or more solutions - including your own) - or delete.

If you are uncertain how to do this - post back here.