Do you mean the digital signature on the installer? If so, you can't get a current one.
The message means that, for some reason, Intuit signed the installer and didn't use a time-stamp server when they did it, which is the way to sign files so later the user doesn't get a message like, later after the digital signature valid time-frame ends.
You have clicked a link to a site outside of the QuickBooks or ProFile Communities. By clicking "Continue", you will leave the community and be taken to that site instead.