Did you just find a download or a file on your computer that has been digitally signed by Microgaming Software Systems Limited? Some of the security products refers to the detected files as Unwanted-Program ( 00496b011 ) and GAME/Casino.Gen. The detection rate for the Microgaming Software Systems Limited files collected here is 14%. Please read on for more details.
You will probably notice Microgaming Software Systems Limited when clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screencap shows:

You can also view the Microgaming Software Systems Limited certificate with the following procedure:
Here is a screencap of a file signed by Microgaming Software Systems Limited:

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 Microgaming Software Systems Limited and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can see 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 Microgaming Software Systems Limited, such as the street name, city and country.
Thawte Code Signing CA - G2 and Entrust Code Signing Certification Authority - L1D has issued the Microgaming Software Systems Limited certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screencap above.
The following are the Microgaming Software Systems Limited files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 7/41 | veg7183.tmp |
| 6/51 | lucF711.tmp |
Here's the detection names for the Microgaming Software Systems Limited files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AntiVir | GAME/Casino.Gen |
| ESET-NOD32 | a variant of Win32/PrimeCasino, a variant of Win32/PrimeCasino.A |
| Emsisoft | Adware.Win32.Casino.AMN!A2 |
| F-Prot | W32/Casino.P.gen!Eldorado |
| Fortinet | Riskware/CasOnline |
| K7AntiVirus | Unwanted-Program, Unwanted-Program ( 00496b011 ) |
| K7GW | Unwanted-Program ( 00496b011 ) |
| Symantec | WS.Reputation.1 |
| VIPRE | Casino Software (not malicious) |
The detection percentage is based on that I have collected 92 scan reports for the Microgaming Software Systems Limited files. 13 of these scan results came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.
The analysis is done on certificates with the following serial numbers: