How to increase iis url length to 3MB

Hi,

I Got "HTTP Error 414. The request URL is too long. " Error for sending morethan 32766 characters in url . I also change UrlSegmentMaxLength is (32766 in Decimal),MaxRequestBytes is (16777216 in Decimal) and MaxFieldLength is (65534 in Deimal).

My requirement is to send morethan 64k data through  URL.

Thanks,

Regards,

Surya