How do i add custom IIS log field in IIS 6.0?

Dear Team,

As we know Advance logging tool is ment for IIS 7 or above but how to achieve same in IIS 6.0.

In other words, I need some urgent help with regards to writing/adding custom field while writing IIS logs on server. This field value with come from reading one of the Request.Headers which we get from our client in header with every request.

Please provide me some solution to finish this requirement.

Thanks and Best Regards,

Amit Shah