Невероятно но - факт. После отключения Аваста и ввода команды 
net start | findstr avast "всплыло" 2 не завершённых службы Аваста: 
 __________________________________________ 
 C:\Users\AzagThoth>net start | findstr avast 
    avast! Antivirus 
    avast! iAVS4 Control Service 
 __________________________________________ 
 Выключил их. После этого строка с activate:12080 пропала. 
 Вот, что 
netstat -a выдаёт теперь: 
 __________________________________________ 
 C:\Users\AzagThoth>netstat -a   
 [more=Активные подключения]   
   Имя    Локальный адрес        Внешний адрес          Состояние 
   TCP    0.0.0.0:7              AzagThoth:0            LISTENING 
   TCP    0.0.0.0:9              AzagThoth:0            LISTENING 
   TCP    0.0.0.0:13             AzagThoth:0            LISTENING 
   TCP    0.0.0.0:17             AzagThoth:0            LISTENING 
   TCP    0.0.0.0:19             AzagThoth:0            LISTENING 
   TCP    0.0.0.0:80             AzagThoth:0            LISTENING 
   TCP    0.0.0.0:135            AzagThoth:0            LISTENING 
   TCP    0.0.0.0:445            AzagThoth:0            LISTENING 
   TCP    0.0.0.0:554            AzagThoth:0            LISTENING 
   TCP    0.0.0.0:912            AzagThoth:0            LISTENING 
   TCP    0.0.0.0:1862           AzagThoth:0            LISTENING 
   TCP    0.0.0.0:2869           AzagThoth:0            LISTENING 
   TCP    0.0.0.0:5357           AzagThoth:0            LISTENING 
   TCP    0.0.0.0:6877           AzagThoth:0            LISTENING 
   TCP    0.0.0.0:10243          AzagThoth:0            LISTENING 
   TCP    0.0.0.0:49152          AzagThoth:0            LISTENING 
   TCP    0.0.0.0:49153          AzagThoth:0            LISTENING 
   TCP    0.0.0.0:49154          AzagThoth:0            LISTENING 
   TCP    0.0.0.0:49155          AzagThoth:0            LISTENING 
   TCP    0.0.0.0:49158          AzagThoth:0            LISTENING 
   TCP    0.0.0.0:49159          AzagThoth:0            LISTENING 
   TCP    0.0.0.0:49164          AzagThoth:0            LISTENING 
   TCP    127.0.0.1:5354         AzagThoth:0            LISTENING 
   TCP    127.0.0.1:9187         AzagThoth:0            LISTENING 
   TCP    127.0.0.1:27015        AzagThoth:0            LISTENING 
   TCP    192.168.1.2:139        AzagThoth:0            LISTENING 
   TCP    192.168.1.2:49340      187-27-5-141:5051      ESTABLISHED 
   TCP    192.168.1.2:53616      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53621      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53661      a92-123-68-56:http     CLOSE_WAIT 
   TCP    192.168.1.2:53744      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53756      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53759      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53766      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53767      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53770      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53773      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53778      www-personal:http      ESTABLISHED 
   TCP    192.168.1.2:53779      77.67.20.17:http       ESTABLISHED 
   TCP    192.168.1.2:53780      65.55.162.26:https     ESTABLISHED 
   TCP    192.168.137.1:135      Almsit1:49192          ESTABLISHED 
   TCP    192.168.137.1:135      Almsit1:49193          ESTABLISHED 
   TCP    192.168.137.1:135      Almsit1:49194          ESTABLISHED 
   TCP    192.168.137.1:139      AzagThoth:0            LISTENING 
   TCP    192.168.137.1:49158    Almsit1:49195          ESTABLISHED 
   TCP    192.168.137.1:49158    Almsit1:49197          ESTABLISHED 
   TCP    192.168.137.1:49158    Almsit1:49198          ESTABLISHED 
   TCP    192.168.137.1:49158    Almsit1:49199          ESTABLISHED 
   TCP    192.168.137.1:51603    AzagThoth:0            LISTENING 
   TCP    [::]:7                 AzagThoth:0            LISTENING 
   TCP    [::]:9                 AzagThoth:0            LISTENING 
   TCP    [::]:13                AzagThoth:0            LISTENING 
   TCP    [::]:17                AzagThoth:0            LISTENING 
   TCP    [::]:19                AzagThoth:0            LISTENING 
   TCP    [::]:135               AzagThoth:0            LISTENING 
   TCP    [::]:445               AzagThoth:0            LISTENING 
   TCP    [::]:554               AzagThoth:0            LISTENING 
   TCP    [::]:2869              AzagThoth:0            LISTENING 
   TCP    [::]:3587              AzagThoth:0            LISTENING 
   TCP    [::]:5357              AzagThoth:0            LISTENING 
   TCP    [::]:10243             AzagThoth:0            LISTENING 
   TCP    [::]:49152             AzagThoth:0            LISTENING 
   TCP    [::]:49153             AzagThoth:0            LISTENING 
   TCP    [::]:49154             AzagThoth:0            LISTENING 
   TCP    [::]:49155             AzagThoth:0            LISTENING 
   TCP    [::]:49158             AzagThoth:0            LISTENING 
   TCP    [::]:49164             AzagThoth:0            LISTENING 
   UDP    0.0.0.0:7              *:* 
   UDP    0.0.0.0:9              *:* 
   UDP    0.0.0.0:13             *:* 
   UDP    0.0.0.0:17             *:* 
   UDP    0.0.0.0:19             *:* 
   UDP    0.0.0.0:53             *:* 
   UDP    0.0.0.0:500            *:* 
   UDP    0.0.0.0:3702           *:* 
   UDP    0.0.0.0:3702           *:* 
   UDP    0.0.0.0:3702           *:* 
   UDP    0.0.0.0:3702           *:* 
   UDP    0.0.0.0:4500           *:* 
   UDP    0.0.0.0:5004           *:* 
   UDP    0.0.0.0:5005           *:* 
   UDP    0.0.0.0:5355           *:* 
   UDP    0.0.0.0:18421          *:* 
   UDP    0.0.0.0:18422          *:* 
   UDP    0.0.0.0:20129          *:* 
   UDP    0.0.0.0:27098          *:* 
   UDP    0.0.0.0:49827          *:* 
   UDP    0.0.0.0:51890          *:* 
   UDP    0.0.0.0:56240          *:* 
   UDP    0.0.0.0:56242          *:* 
   UDP    0.0.0.0:59622          *:* 
   UDP    0.0.0.0:64681          *:* 
   UDP    0.0.0.0:64683          *:* 
   UDP    127.0.0.1:1900         *:* 
   UDP    127.0.0.1:49828        *:* 
   UDP    127.0.0.1:56239        *:* 
   UDP    192.168.1.2:137        *:* 
   UDP    192.168.1.2:138        *:* 
   UDP    192.168.1.2:1900       *:* 
   UDP    192.168.1.2:1900       *:* 
   UDP    192.168.1.2:5353       *:* 
   UDP    192.168.1.2:56490      *:* 
   UDP    192.168.137.1:67       *:* 
   UDP    192.168.137.1:68       *:* 
   UDP    192.168.137.1:137      *:* 
   UDP    192.168.137.1:138      *:* 
   UDP    192.168.137.1:1900     *:* 
   UDP    192.168.137.1:1900     *:* 
   UDP    192.168.137.1:5353     *:* 
   UDP    192.168.137.1:56238    *:* 
   UDP    192.168.137.1:56491    *:* 
   UDP    [::]:7                 *:* 
   UDP    [::]:9                 *:* 
   UDP    [::]:13                *:* 
   UDP    [::]:17                *:* 
   UDP    [::]:19                *:* 
   UDP    [::]:500               *:* 
   UDP    [::]:547               *:* 
   UDP    [::]:3540              *:* 
   UDP    [::]:3702              *:* 
   UDP    [::]:3702              *:* 
   UDP    [::]:3702              *:* 
   UDP    [::]:3702              *:* 
   UDP    [::]:4500              *:* 
   UDP    [::]:5004              *:* 
   UDP    [::]:5005              *:* 
   UDP    [::]:5355              *:* 
   UDP    [::]:51891             *:* 
   UDP    [::]:56241             *:* 
   UDP    [::]:56243             *:* 
   UDP    [::]:64682             *:* 
   UDP    [::]:64684             *:* 
   UDP    [::1]:1900             *:* 
   UDP    [::1]:56237            *:* 
   UDP    [fe80::24c4:2475:27c8:de2%21]:546  *:* 
   UDP    [fe80::24c4:2475:27c8:de2%21]:1900  *:* 
   UDP    [fe80::3de7:c945:32ec:5400%30]:53  *:* 
   UDP    [fe80::3de7:c945:32ec:5400%30]:546  *:* 
   UDP    [fe80::3de7:c945:32ec:5400%30]:1900  *:* 
   UDP    [fe80::3de7:c945:32ec:5400%30]:56236  *:* 
 [/more] 
 __________________________________________ 
 При ping'е и tracert'е - ошибка та же.   
 А вот и мой 
hosts файл. 
 __________________________________________ 
 # 
 # This is a sample HOSTS file used by Microsoft TCP/IP for Windows. 
 # 
 # This file contains the mappings of IP addresses to host names. Each 
 # entry should be kept on an individual line. The IP address should 
 # be placed in the first column followed by the corresponding host name. 
 # The IP address and the host name should be separated by at least one 
 # space. 
 # 
 # Additionally, comments (such as these) may be inserted on individual 
 # lines or following the machine name denoted by a '#' symbol. 
 # 
 # For example: 
 # 
 #      102.54.94.97     rhino.acme.com          # source server 
 #       38.25.63.10     x.acme.com              # x client host   
 # localhost name resolution is handled within DNS itself. 
 #    127.0.0.1       localhost 
 #    ::1             localhost 
 127.0.0.1 activate.adobe.com 
 127.0.0.1 serial.alcohol-soft.com 
 127.0.0.1 
www.alcohol-soft.com  127.0.0.1 images.alcohol-soft.com 
 127.0.0.1 trial.alcohol-soft.com 
 127.0.0.1 alcohol-soft.com 
 127.0.0.1 secure.disc-soft.com 
 __________________________________________    
Добавлено:  Цитата: netstat -na | findstr 12080 просто не очень понятно activate - кто это?
  Вот, что выходит: 
 _________________________________________________ 
 C:\Users\AzagThoth>netstat -na | findstr 12080 
   TCP    127.0.0.1:12080        0.0.0.0:0              LISTENING 
 _________________________________________________