There are several different editions of the program. The edition you have depends upon the type of program license you purchased. Each edition provides a different level of capabilities. To determine which edition you are running, look at the title bar on the main page of the program. Choosing Help > About will also provide edition details.
This section provides a synopsis of each available edition.
This is the full edition of the program. With NetChk Protect you can scan for missing patches, deploy missing patches, and view the results of these actions. You also have access to all the other features provided by the program, including power management capabilities, asset management capabilities, and the threat management capabilities provided by Shavlik NetPt Agent.
The Audit edition allows you to perform agentless scans for missing patches and to evaluate the status of your machines. It does not allow you to deploy patches to your machines, nor does it provide access to the power and asset management functions or the agent-based threat management capabilities of Shavlik NetPt Agent.
NetChk Protect is available on a trial basis. This enables you to test all the capabilities of NetChk Protect, but only for 45 days. You are also limited to 50 license seats. When the trial license expires the program will only allow you to scan and deploy to the local machine.
NetChk Protect Limited is what you receive if you download the program from the Web site and do not enter a license key. It takes up where Microsoft Baseline Security Analyzer (MBSA) 2.x leaves off by analyzing the patch status of those Microsoft products no longer supported by MBSA. As its name suggests, NetChk Protect Limited is not a full-featured version of the program. It scans only a limited set of legacy Microsoft products. It does not allow you to deploy patches to your machines, nor does it provide access to the power and asset management functions or to the agent-based capabilities of Shavlik NetPt Agent. For more details, see What is The Limited Program?.
NetChk vProtect is designed to perform virtualization management tasks on virtual machines (VMs) and virtual machine templates. With NetChk vProtect you can scan your VMs for missing patches and you can deploy the missing patches to your VMs. NetChk vProtect will not allow you to perform asset management tasks, power management tasks, or antivirus/antispyware tasks, nor will it provide access to the agent-based capabilities that are available in the full edition of the program. For more details, see What is NetChk vProtect?.