Customers with KB978601 installed are unable install one of our
software products. They get the error "invalid digital signature" when
the installer reaches the last cab file. I was able to reproduce the
problem on Windows 7 and XP (both with the latest updates), and also
verified the problem goes away after uninstalling KB978601.
The following error message was logged: "Error 1330. A file that is
required cannot be installed because the cabinet file setup11.cab has
an invalid digital signature. This may indicate that the cabinet file
is corrupt. Error 24592 was returned by WinVerifyTrust."
Our product comes with 11 cab files. Only the last one gives the
error. When you right-click on the cab file and view the certificate,
the message is "This digital signature is not valid."
This problem just started happening yesterday (4/15/10).
Any ideas or similar experiences?