update engine.cc

@@ -120,6 +120,7 @@ bool InsertMBLHook();           // MBL: *.mbl
 bool InsertMEDHook();           // MED: *.med
 bool InsertMinkHook();          // Mink: *.at2
 //bool InsertMonoHook();          // Mono (Unity3D): */Mono/mono.dll
+bool InsertNekopackHook();      // Nekopack: *.dat
 bool InsertNeXASHook();         // NeXAS: Thumbnail.pac
 bool InsertNextonHook();        // NEXTON: aInfo.db
 bool InsertNexton1Hook();

@@ -121,7 +121,7 @@ bool DetermineEngineByFile1()
     InsertSideBHook();
     return true;
   }
-  if (IthFindFile(L"bgi.*") || IthFindFile(L"BHVC.exe") || IthFindFile(L"sysgrp.arc")) {
+  if (IthFindFile(L"bgi.*") || IthFindFile(L"sysgrp.arc")) {
     InsertBGIHook();
     return true;
   }
@@ -329,6 +329,10 @@ bool DetermineEngineByFile3()
     InsertStuffScriptHook();
     return true;
   }
+  if (IthFindFile(L"USRDIR\\*.mpk")) { // jichi 12/2/2014
+    InsertStuffScriptHook();
+    return true;
+  }
   if (IthCheckFile(L"Execle.exe")) {
     InsertTriangleHook();
     return true;
@@ -613,6 +617,9 @@ bool DetermineEngineAtLast()
   if (IthFindFile(L"*.pak") // jichi 12/25/2014: too common
       && InsertLeafHook())
     return true;
+  if (IthFindFile(L"*.dat") // mireado 08/22/2016: too common
+      && InsertNekopackHook())
+    return true;
   // jichi 10/31/2014
   // File description: Adobe Flash Player 10.2r153
   // Product name: Shockwave Flash