Index: /trunk/include/VBox/ostypes.h
===================================================================
--- /trunk/include/VBox/ostypes.h	(revision 70216)
+++ /trunk/include/VBox/ostypes.h	(revision 70217)
@@ -53,4 +53,5 @@
     VBOXOSTYPE_WinNT            = 0x30000,
     VBOXOSTYPE_WinNT_x64        = 0x30100,
+    VBOXOSTYPE_WinNT3x          = 0x30800,
     VBOXOSTYPE_WinNT4           = 0x31000,
     VBOXOSTYPE_Win2k            = 0x32000,
Index: /trunk/src/VBox/Devices/VMMDev/VMMDev.cpp
===================================================================
--- /trunk/src/VBox/Devices/VMMDev/VMMDev.cpp	(revision 70216)
+++ /trunk/src/VBox/Devices/VMMDev/VMMDev.cpp	(revision 70217)
@@ -183,4 +183,5 @@
         case VBOXOSTYPE_WinMe:                            pszOs = "Windows Me";     break;
         case VBOXOSTYPE_WinNT:                            pszOs = "Windows NT";     break;
+        case VBOXOSTYPE_WinNT3x:                          pszOs = "Windows NT 3.x"; break;
         case VBOXOSTYPE_WinNT4:                           pszOs = "Windows NT4";    break;
         case VBOXOSTYPE_Win2k:                            pszOs = "Windows 2k";     break;
Index: /trunk/src/VBox/Main/src-all/Global.cpp
===================================================================
--- /trunk/src/VBox/Main/src-all/Global.cpp	(revision 70216)
+++ /trunk/src/VBox/Main/src-all/Global.cpp	(revision 70217)
@@ -59,4 +59,9 @@
         128,  4,  4 * _1G64, NetworkAdapterType_Am79C973, 0, StorageControllerType_PIIX4, StorageBus_IDE,
         StorageControllerType_PIIX4, StorageBus_IDE, ChipsetType_PIIX3, AudioControllerType_AC97, AudioCodecType_STAC9700  },
+
+    { "Windows", "Microsoft Windows", "WindowsNT3x",       "Windows NT 3.x",
+       VBOXOSTYPE_WinNT3x,       VBOXOSHINT_NOUSB | VBOXOSHINT_FLOPPY,
+       128,  16,  2 * _1G64, NetworkAdapterType_Am79C973, 0, StorageControllerType_PIIX4, StorageBus_IDE,
+        StorageControllerType_PIIX4, StorageBus_IDE, ChipsetType_PIIX3, AudioControllerType_SB16, AudioCodecType_SB16  },
 
     { "Windows", "Microsoft Windows", "WindowsNT4",         "Windows NT 4",
Index: /trunk/src/VBox/Main/src-server/ApplianceImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/src-server/ApplianceImpl.cpp	(revision 70216)
+++ /trunk/src/VBox/Main/src-server/ApplianceImpl.cpp	(revision 70217)
@@ -119,4 +119,5 @@
     { ovf::CIMOSType_CIMOS_WINNT,                                VBOXOSTYPE_WinNT },
     { ovf::CIMOSType_CIMOS_WINNT,                                VBOXOSTYPE_WinNT4 },
+    { ovf::CIMOSType_CIMOS_WINNT,                                VBOXOSTYPE_WinNT3x },
     { ovf::CIMOSType_CIMOS_NetWare,                              VBOXOSTYPE_Netware },
     { ovf::CIMOSType_CIMOS_NovellOES,                            VBOXOSTYPE_Netware },