Did you just stumble upon a download or a file on your computer that has a digital signature from Viscom Software? If so, please read on.
You will probably see Viscom Software when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the additional details from the Viscom Software digital signature with the following steps:
Here's a screengrab of a file that has been digitally signed by Viscom Software:

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 Viscom Software and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot 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 Viscom Software, such as the street name, city and country.
COMODO Code Signing CA 2 has issued the Viscom Software certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Viscom Software files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/72 | calendarsetup.exe |
The detection percentage is based on that I've collected 72 scan reports for the Viscom Software files. 0 of these scan results came up with some sort of detection. You can review 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: