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Proposed Answer Vista SP2 RC SP2 maximum number of open TCP connections

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      Friday, March 06, 2009 4:39 AM
       
       
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      Vista SP2 introduces "a registry key that enables modification of the maximum number of open TCP connections to increase application compatibility"


      Where does one find this registry key?

       

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    • Friday, March 06, 2009 11:54 PM
       
       
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      HI all,
      Sorry I can't help with an answer. I'm after the same information as well.

      Thanks
      Mick
       
    • Saturday, March 07, 2009 8:29 PM
       
       
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      Same here. Any info regarding this?
       
    • Wednesday, March 11, 2009 2:56 AM
       
       
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      Anybody? 


      Seems strange to advertise a feature that nobody knows how to turn on or test...

       
    • Sunday, March 15, 2009 12:55 PM
       
       
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       Bump, where's this feature?
       
    • Monday, March 23, 2009 4:04 AM
       
       Proposed Answer
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      In Sp2, we changed the behavior of maximum number of half-open TCP connections.

       

      RTM/Sp1:

      At any given time, maximum of 10 half open TCP connections were supported.

       

      Sp2:

      This limit is removed.

       
    • Monday, March 23, 2009 7:28 PM
       
       
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      Kalpesh [MSFT] said:

       

      In Sp2, we changed the behavior of maximum number of half-open TCP connections.

       

      RTM/Sp1:

      At any given time, maximum of 10 half open TCP connections were supported.

       

      Sp2:

      This limit is removed.



      So, hopefully, we should not see anymore the hideous Event ID 4226?
      Thanks!
       
    • Thursday, April 30, 2009 6:06 PM
       
       
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      Kalpesh [MSFT] said:

       

      In Sp2, we changed the behavior of maximum number of half-open TCP connections.

       

      RTM/Sp1 :

      At any given time, maximum of 10 half open TCP connections were supported.

       

      Sp2 :

      This limit is removed.

       



      So, hopefully, we should not see anymore the hideous Event ID 4226?
      Thanks!
      No but it looks like we got Event ID 4228 instead which aparently is more or less the same... so where is that registry key?
       
    • Thursday, April 30, 2009 10:46 PM
       
       
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      Yikes?  4228?!

      And what about Win7?

      Is MS only lifting the restriction from Vista because soon only 2 or 3 people will be using it?
       
    • Friday, May 01, 2009 7:21 PM
       
       
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      No but it looks like we got Event ID 4228 instead which aparently is more or less the same... so where is that registry key?

      Strange. I don't have any 4228...
       
    • Wednesday, May 06, 2009 5:14 PM
       
       
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      This article has just appeared with the registry key: http://support.microsoft.com/kb/969710

      Note however that the default behavior has changed: by default the limit of 10 is removed under SP2. The registry puts the limit back and reverts you to the behavior under SP1.
       
    • Wednesday, May 06, 2009 5:51 PM
       
       
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      Smart decision. So now we await news on Win7. In RC, at least, TCP-Z still seems to think that the limitation exists, so it appears not to be implemented in Win7 yet. I don't have Vista SP2 to be able to run TCP-Z there to determine if it's a reliable indicator.
       
    • Wednesday, May 27, 2009 2:40 AM
       
       
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      Rseiler
      find link
      http://technet.microsoft.com/en-us/windows/dd262148.aspx
      SP2 For vista and server 2008 are available now for download. I have had the service pack beta installed now for some time and it works great. no need for windows 7 for fix.

      good luck
      Marc
      Thanks