Did you just stumble upon a file that has a digital signature from Materialise NV? If so, please read on.
You'll typically notice Materialise NV 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 Materialise NV digital signature with the following steps:
Here is a screencap of a file that has been signed by Materialise NV:

As you can see in the screenshot above, the Windows OS reports that "This digital signature is OK". This implies that the file has been published by Materialise NV and that no one has tampered with the file.
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 view the address for Materialise NV, such as the street name, city and country.
VeriSign Class 3 Code Signing 2004 CA has issued the Materialise NV certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Materialise NV files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/56 | licsrv50.exe |
The detection percentage is based on the fact that I have collected 56 scan reports for the Materialise NV 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 reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: