Firewall Client for ISA Server with Vista Support

The final release of the new Firewall Client for ISA Server is now available for download from The new version can be installed on computers running Windows 2000, Windows NT 4.0, Windows Server 2003, Windows XP, and Windows Vista. It also includes software updates that improve the security and stability of Firewall Client software.

 You can read more about Firewall Client in Internal Client Concepts in ISA Server 2006, available from the ISA Server TechCenter at The new ISA Server TechCenter on TechNet is now the central location for all ISA Server 2004 and ISA Server 2006 technical documentation. For more information, see

 Rayne Wiselman

ISA Server User Experience Team




Comments (8)

  1. Anonymous says:

    BTW, WCF also hangs on Vista with ISA Client present

    We need a patch for ISA !!!

  2. Anonymous says:


    i also have same issue please any one have solution in this regard please let post it

  3. Anonymous says:

    The problem is solved.

    MS Firewall Client for ISA Server v 4.0 conflicts with Vista!!!

    My application uses technique by TCP channel. An exception is issued when my client calls to the server:

    >The exception ArgumentNullException arises in

    >system function CopyToManaged because of

    >null "source" argument.

    For coding, I took the simplest Remoting sample from the Microsoft site:

    And it crashes under Vista if Firewall Client for ISA Server is present. (Under XP no problem remoting).

    After I had uninstalled Firewall Client from my Vista PC the problem was gone.

    Does Microsoft know about this issue?

    Details on the exception follow:


    System.ArgumentNullException was unhandled

    Message="Значение не может быть неопределенным.rnИмя параметра: source"




    в System.Runtime.InteropServices.Marshal.CopyToManaged(IntPtr source, Object destination, Int32 startIndex, Int32 length)

    в System.Net.Sockets.AcceptOverlappedAsyncResult.PostCompletion(Int32 numBytes)

    в System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)

    в System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)


  4. Anonymous says:

    My PC is running Windows Vista Business edition, MS Office 2003, client of ISA 2000 Server and I also installed the ISA client for Vista.

    My problem is my Outlook 2003 (SMTP and POP3) can’t connect to the internet. I try to update all Windows Vista updates, MS Office 2003 updates and ISA 2000 Server updates and also the new ISA client for Vista but unfortunately still my Outlook looks like my ISA 2000 Server can’t accept. However no problem with my browser I can connect to the internet.

    With my other PC which is running XP and same configuration except the ISA client installed based on the previous ISA 2000 version it’s all normal and physically connected.

    I’m now still continuing to search to solve this problem but only this ISA client for Vista I found out but after I install still I can’t connect.

    I hope you can give solution about this matter … anybody have solution to this matter please e-mail at : or

    Thank you.

    Romel J. Tagaylo

  5. Anonymous says:

    I can browse the internet if i manually put in the proxy settings into it.

  6. Troy says:

    Hi guys,

    I’m having a simular problem. A client of mine is running vista business & they run isa2000. The vista laptop will not connect to the internet. when i check the network status it shows local only, the internet side has a red cross over it. I can browse the internet if i manually put in the proxy settings into I.E but the status still displays local only.

    I hope you can give me a solution to this matter. please mail solution to

  7. Leslie says:

    Same problem for ages. No one seems to want to answer. in fact most answers seemed to suggest that I was crazy to want to do something like this. Did you guys mangage to solve this?

  8. Yasir says:

    I cant send email by smtp when ISA SERVER 2000 Firewall client is enabled. I m using outlook 2003 and getting mails from pop3 but cant send emails. When i disable the firewall client then i can sen emails.

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