Did you just run into a file that has been digitally signed by Surfboard Holding BV? If that's the case, please read on.
You will probably notice Surfboard Holding BV when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the Surfboard Holding BV certificate with the following steps:
Here's a screengrab of a file digitally signed by Surfboard Holding BV:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This means that the file has been published by Surfboard Holding BV and that the file has not been tampered with.
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 see the address for Surfboard Holding BV, such as the street name, city and country.
Thawte Code Signing CA - G2 has issued the Surfboard Holding BV certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screengrab above.
The following are the Surfboard Holding BV files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/55 | IxquickToolbar-2.0.5.dll |
| 0/54 | IxquickToolbar-2.0.1.dll |
The detection percentage is based on that I've gathered 176 scan reports for the Surfboard Holding BV files. 0 of these scan results came up with some sort of detection. If you like, you can view the full details of the scan results by examining the files listed above.
The analysis has been done on certificates with the following serial numbers: