> I downloaded and tried to install the sp1. It went through once
> completely with 'SQL Server Native Client' left out pending restart. I
> re-ran the set-up, this time it did the client but on the second item
> 'Set-up support files' it comes up with 'The following unexpected error
> occurred: Unable to install Windows Installer MSP file' and then crashes
> (asks to send error report).
>
> What is the problem and how can I finish the sp1 install properly?

> Same thing happens every time despite restart. Even if files are locked
> why does it crash i.e. tries to send error report?

"Erland Sommarskog" <esquel@sommarskog.se> wrote in message
news:Xns98256429BEB8Yazorman@127.0.0.1...
> John (John@nospam.infovis.co.uk) writes:
>> I downloaded and tried to install the sp1. It went through once
>> completely with 'SQL Server Native Client' left out pending restart. I
>> re-ran the set-up, this time it did the client but on the second item
>> 'Set-up support files' it comes up with 'The following unexpected error
>> occurred: Unable to install Windows Installer MSP file' and then crashes
>> (asks to send error report).
>>
>> What is the problem and how can I finish the sp1 install properly?
>
> Reboot the machine. The message for SQL Native Client means that some
> files were write-locked so that the installer could not replace them.
>
>
> --
> Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se
>
> Books Online for SQL Server 2005 at
> http://www.microsoft.com/technet/prodtechnol/sql/2005/downloads/books.mspx
> Books Online for SQL Server 2000 at
> http://www.microsoft.com/sql/prodinfo/previousversions/books.mspx