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How to disable SackOpts (Selective Acknowledgements) in Windows 7

I am trying to figure out how to disable / toggle Selective Acknowledgements (SackOpts) in Windows 7?

Any ideas?
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c-h-r-i-s-t-o-p-h
Asked:
c-h-r-i-s-t-o-p-h
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1 Solution
 
David Johnson, CD, MVPOwnerCommented:
this tweak is for windows xp but should work http://www.pctools.com/guides/registry/detail/895/
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c-h-r-i-s-t-o-p-hAuthor Commented:
Thanks. We've tried this one already with no luck.

Unfortunately, the SackOpts key does not exist at HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters in Windows Vista or Windows 7.

We did try to manually add the key and set it to '0' with no joy.
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c-h-r-i-s-t-o-p-hAuthor Commented:
ended up using a windows xp machine to troubleshoot the issue
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