Fix issues with security tokens (Enhanced Protected Mode, Protected Mode etc)

src/engine/Main.cpp

 #include <AdblockPlus.h>
 #include <functional>
 #include <vector>
 #include <Windows.h>
 
 #include "../shared/AutoHandle.h"
 #include "../shared/Communication.h"
 #include "../shared/Dictionary.h"
 #include "../shared/Utils.h"
 #include "../shared/Version.h"
@@ skipping 378 matching lines @@
 
   if (GetLastError() == ERROR_ALREADY_EXISTS)
   {
     DebugLastError("Named pipe exists, another engine instance appears to be running");
     return 1;
   }
 
   int argc;
   LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &argc);
   std::wstring locale(argc >= 2 ? argv[1] : L"");
-  Communication::browserSID = argc >= 3 ? argv[2] : L"";
   LocalFree(argv);
   Dictionary::Create(locale);
   filterEngine = CreateFilterEngine(locale);
   updater.reset(new Updater(filterEngine->GetJsEngine()));
 
   for (;;)
   {
     try
     {
       Communication::Pipe* pipe = new Communication::Pipe(Communication::pipeName,
             Communication::Pipe::MODE_CREATE);
 
       AutoHandle thread(CreateThread(0, 0, ClientThread, static_cast<LPVOID>(pipe), 0, 0));
       if (!thread)
       {
         delete pipe;
         DebugLastError("CreateThread failed");
         return 1;
       }
     }
     catch (std::runtime_error e)
     {
       DebugException(e);
       return 1;
     }
   }
 
   return 0;
 }