Use HTC Sync. To install Dr.Web, you need to connect your device to your computer and sync them with HTC Sync. Use HTC Sync to run the Application Installation wizard, specify the path to the file drweb-600-android.apk and follow the wizard instructions.
Manually. Copy drweb-600-android.apk (download link) to the mobile device (from a computer, with a memory card or download OTA from our web-site). To run the file you will need a file manager.
Via Android Market. Go to the Android Market, find Dr.Web on the application list and select Install. In the subsequent window displaying information about the privileges required for the program, click OK, the application will be installed automatically.