IECWind previous version

Greetings,
I am working on simulating various load cases, which I referred from IEC 61400 (ed 2). So, for simulating some of the wind cases, I need to depend on IECWind. Since the IECWind_v5 available is according to IEC 61400 (ed 3), it would be helpful for me to proceed if I am able to get IECWind_v4.
Thanks in advance.
With regards,
Akheel.

Dear Akheel,

I just sent you an e-mail.

Best regards,

Greetings Sir,
Thanks a lot for the file and quick response.
With regards,
Akheel.