IPHeader login module in SAP portal 7.31

Hi Experts,

We need to implement IPHeader login module in SAP portal 7.31. So can you pleasel et me know from where we can get the IPHEADER Login Module SDA file compatible with 7.3 so that we can deploy them on our server.

Also I am having few queries

1) Do we get the SDA file for IPHeader Login Module?

2) Or If we can get the steps or any document for creatng the IPHeader login modile.

Regards,

Anand