Did you just run into a file that is digitally signed by Solid Quest Inc.? If so, please read on.
You will typically see Solid Quest Inc. when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Solid Quest Inc. certificate with the following procedure:
Here is a screengrab of a file that has been digitally signed by Solid Quest Inc.:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Solid Quest Inc. and that the file has not been tampered with.
If you click the View Certificate button shown in the screencap above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also see the address for Solid Quest Inc., such as the street name, city and country.
UTN-USERFirst-Object has issued the Solid Quest Inc. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Solid Quest Inc. files I have gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Solid Quest Inc. files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Solid Quest Inc..
| Detection Ratio | File Name |
|---|---|
| Not available | ErrorTeck.exe |
The analysis is based on certificates with the following serial numbers: