Did you just find a file that has a digital signature from Dolby Laboratories? If that's the case, please read on.
You will typically see Dolby Laboratories when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the additional details from the Dolby Laboratories digital signature with the following procedure:
Here is a screenshot of a file that has been signed by Dolby Laboratories:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This means that the file has been published by Dolby Laboratories and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can examine all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for Dolby Laboratories, such as the street name, city and country.
VeriSign Class 3 Code Signing 2004 CA has issued the Dolby Laboratories certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screencap above.
These are the Dolby Laboratories files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/41 | DolbyVistaConfig.e_19669801311F411CAEA0BF26F8E89472.exe |
The detection percentage is based on the fact that I've collected 41 scan results for the Dolby Laboratories files. 0 of these scan results came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
The analysis is done on certificates with the following serial numbers: