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The license key has the .key extension and contains the following information:
| • | Licensed period for the product |
| • | List of licensed anti-virus components |
| • | Other restrictions (for example, the number of remote computers allowed for simultaneous anti-virus check) |
Dr.Web Anti-virus for Windows Server requires a key file in order to operate correctly. License key file is purchased with Dr.Web and allows you to use the software and receive technical support. Parameters of the license key file are set in accordance with the software's license agreement. The license key file also contains information about the user and seller of the software.
A valid license key file satisfies the following criteria:
| • | All anti-virus components required by Dr.Web are licensed |
| • | Integrity of the license key file is not violated |
If any of the conditions are violated, the license key file becomes invalid and Dr.Web stops detecting and neutralizing malicious programs in files, memory and email messages.
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