SpIDer Agent checks whether you have a key file. If no key file is found, you are prompted to obtain a key file via the internet.
A key file can be obtained during the installation procedure. For this, select the Receive license during installation option at step 5 of the installation procedure, and activation of a license or a trial version will start.
You can also obtain a key file by starting activation of a license or a demo period after the product is installed on your system. For that, do one of the following:
•Click the SpIDer Agent icon 
in the notification area and select License.
•The License Manager window opens. Click Obtain new license and select via the Internet in the drop-down list.
After activation is started, the Registration Wizard window opens.
To activate the license, you need to enter the registration serial number, supplied to you when purchasing Dr.Web.
To evaluate the program, you can activate a trial version for 1 month. For that purpose, no serial number is required and no registration data is requested.
The first window prompts you to select one of the following activation methods:
•activate license
•get demo
•purchase license
If you have a serial number for activation of a license, select Activate license. Enter the serial number and click Next. The registration data entry window opens.
If you do not have a serial number and want to evaluate functionality of the product, you can activate a demo period for 1 month by selecting Get demo. Click Next. A window with the activation results opens.
To purchase a license from Doctor Web online store, click Purchase license.
If you already have a valid key file, click Other activation types. In the open window, specify the file path.
To register a license, enter personal data (your registration name and email address) and select the country from the drop-down list. All the listed fields are obligatory and must be filled in.
Click Next.
If the activation procedure completes successfully, the corresponding message is displayed. Click Finish to proceed to updating the virus databases and other package files. This procedure does not require user intervention.
If activation failed, an error message displays. Click Connection parameters to adjust internet connection parameters or click Repeat to correct invalid data.