i tried to install the same copy on xp , and it's opend no problem on it.

"Richard G. Harper" <rgharper@email.com> wrote in message
news:O$uj5p1rIHA.5060@TK2MSFTNGP03.phx.gbl...[color=blue]
> Have you tried downloading a fresh copy to make sure that your download
> was not corrupt or otherwise damaged?
>
> --
> Richard G. Harper [MVP Shell/User] [email]rgharper******.com[/email]
> * NEW! Catch my blog ... [url]http://msmvps.com/blogs/rgharper/[/url]
> * PLEASE post all messages and replies in the newsgroups
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>
>
> "khaled" <khaled-elashry@nileprojects.com> wrote in message
> news:%23HrOoV1rIHA.1952@TK2MSFTNGP05.phx.gbl...[color=green]
>> hello
>>
>> when tring to install SQL server Managment Studio Express on windows
>> vista i
>> got the following message :
>>
>> [ Windows Installer
>> This installation package could not be opened. contact the application
>> vendor to verify that this is a valid windows installer package ]
>>
>>
>> any help please.
>>
>> Thanks.
>>
>>[/color]
>[/color]