Microsoft has released two new updates for Windows Vista
"KB949758: Install this update to enable remote management of a Windows Server 2008 computer running the Hyper-V RC0 role."
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Download for 32-bit
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Download for 64-bit
"KB932156: Install this tool to resolve an issue where certificate information cannot be viewed in either Internet Explorer 7 or Certificate Manager after successfully importing a certificate on a system running Windows Vista."
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Download for 32-bit
>>
Download for 64-bit