"Walter Wang [MSFT]" wrote:

> Hi Dave,
>
> This is due to Vista has tighter security restriction on the publisher
> certificates. The persence of a certificate by itself doesn't make the
> signed file more safer. The point here is that third parties like VeriSign
> (http://msdn2.microsoft.com/en-us/library/ms995347.aspx) that a certificate
> is authentic and that you're who you claim to be.
>
> As for the temp directory, I think it's because the files being installed
> are first extracted to the temporary; and when installing it, the MSI
> engine knew the files are signed but the publisher is not verified,
> therefore it prompts the files to user.
>
> For more information, please refer to:
>
> #Certified for Windows Vista Requirements
> http://download.microsoft.com/download/8/e/4/8e4c929d-679a-4238-8c21-2dcc8ed
> 1f35c/Windows%20Vista%20Software%20Logo%20Spec%201.1.doc
>
>
> Regards,
> Walter Wang (wawang@online.microsoft.com, remove 'online.')
> Microsoft Online Community Support
>
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