Did you just run into a download or a file on your computer that has been digitally signed by SOURCENEXT CORPORATION? If so, please read on.
You will probably see SOURCENEXT CORPORATION 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 SOURCENEXT CORPORATION digital signature with the following procedure:
Here's a screenshot of a file signed by SOURCENEXT CORPORATION:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This implies that the file has been published by SOURCENEXT CORPORATION 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, and so on. You can also examine the address for SOURCENEXT CORPORATION, such as the street name, city and country.
Symantec Class 3 Extended Validation Code Signing CA and VeriSign Class 3 Code Signing 2009-2 CA has issued the SOURCENEXT CORPORATION certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the SOURCENEXT CORPORATION files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/47 | MessageLib.dll |
| 0/48 | ksvcde.sys |
The detection percentage is based on the fact that I have gathered 95 scan reports for the SOURCENEXT CORPORATION files. 0 of these scan results came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.
In the analysis on this page I grouped all certificates where the signer name is set to upper and lower case variants of SOURCENEXT CORPORATION. These are the signer names:
The analysis is done on certificates with the following serial numbers: