ISA server 2006 - How to solve error "unsupported header"?

Posted on 2007-10-04
Last Modified: 2011-10-03
ISA server 2006 - How to solve error "unsupported header"?

I try without PROXY - proxy disabled on ISA  and server has been restarted.
When I go to to icq web site and try to run icq to go. And ISA server 2006 gives me an error:

The HTTP message includes an unsupported header or an unsupported combination of headers.

The starnagest thing that it is "Web Proxy Filter" that  gives this error.

HELP ME !!!!

All details:
Original Client IP      Client Agent      Authenticated Client      Service      Server Name      Referring Server      Destination Host Name      Transport      MIME Type      Object Source      Source Proxy      Destination Proxy      Bidirectional      Client Host Name      Filter Information      Network Interface      Raw IP Header      Raw Payload      GMT Log Time      Source Port      Processing Time      Bytes Sent      Bytes Received      Result Code      HTTP Status Code      Cache Information      Error Information      Log Record Type      Authentication Server      Log Time      Destination IP      Destination Port      Protocol      Action      Rule      Client IP      Client Username      Source Network      Destination Network      HTTP Method      URL      Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506; InfoPath.2; .NET CLR 1.1.4322)      Yes      Proxy      ISA      TCP            Internet      -      -            -      Req ID: 0dacc6e9       -      -      -      10/2/2007 1:29:51 PM      0      1312      2299      841            12156 The HTTP message includes an unsupported header or an unsupported combination of headers.       0x21000000      0x80      Web Proxy Filter            10/2/2007 3:29:51 PM      80      http      Failed Connection Attempt      Servers out      domain\johny       Internal      External      GET
Question by:Jonathan-Ravzin
    LVL 26

    Accepted Solution

    Have a look at following:

    Author Comment

    I think you are correct but I can not download a hotfix the say:

    Therefore, if you are not severely affected by this problem, we recommend that you wait for the next ISA Server 2006 service pack that contains this hotfix.

    To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix.

    Can you tell me where can I download it, without calling microsoft?

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