Signed MSP still says Unknown Publisher

[Guest Thatcham]

Hi,

 

We create monthly updates for our software released as MSP files. While we

use Installshield 2008 to build the MSI installations, we use MSIMSP to build

the patches. The patches install without issue, however, we have an issue

signing it. Signtool says that the patch is signed successfully, but Vista

insists that it is an Unknown publisher. How do we fix this?

 

Also, while installing the MSI, it is happily acknowledging our signature,

but uninstall is not. It insists Unknown Publisher.

 

Thanks in advance