diff --git a/dlls/mshtml/Makefile.in b/dlls/mshtml/Makefile.in
index 49feb77f656..cd06db90cef 100644
--- a/dlls/mshtml/Makefile.in
+++ b/dlls/mshtml/Makefile.in
@@ -52,6 +52,7 @@ C_SRCS = \
 	main.c \
 	mutation.c \
 	navigate.c \
+	npplugin.c \
 	nsembed.c \
 	nsevents.c \
 	nsio.c \
diff --git a/dlls/mshtml/main.c b/dlls/mshtml/main.c
index 1b3c767ddcd..679c206831b 100644
--- a/dlls/mshtml/main.c
+++ b/dlls/mshtml/main.c
@@ -520,12 +520,3 @@ const char *debugstr_variant(const VARIANT *v)
         return wine_dbg_sprintf("{vt %d}", V_VT(v));
     }
 }
-
-/***********************************************************************
- *          NP_GetEntryPoints (npmshtml.@)
- */
-INT16 WINAPI NP_GetEntryPoints(void *funcs)
-{
-    FIXME("(%p)\n", funcs);
-    return 1;
-}
diff --git a/dlls/mshtml/npplugin.c b/dlls/mshtml/npplugin.c
new file mode 100644
index 00000000000..bd3d64f81f3
--- /dev/null
+++ b/dlls/mshtml/npplugin.c
@@ -0,0 +1,208 @@
+/*
+ * Copyright 2010 Jacek Caban for CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include "config.h"
+
+#include <stdarg.h>
+
+#define COBJMACROS
+
+#include "windef.h"
+#include "winbase.h"
+#include "winuser.h"
+#include "ole2.h"
+#include "shlobj.h"
+
+#include "mshtml_private.h"
+
+#include "wine/debug.h"
+#include "wine/unicode.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
+
+/* Parts of npapi.h */
+
+#define NPERR_BASE                         0
+#define NPERR_NO_ERROR                    (NPERR_BASE + 0)
+#define NPERR_GENERIC_ERROR               (NPERR_BASE + 1)
+#define NPERR_INVALID_INSTANCE_ERROR      (NPERR_BASE + 2)
+#define NPERR_INVALID_FUNCTABLE_ERROR     (NPERR_BASE + 3)
+#define NPERR_MODULE_LOAD_FAILED_ERROR    (NPERR_BASE + 4)
+#define NPERR_OUT_OF_MEMORY_ERROR         (NPERR_BASE + 5)
+#define NPERR_INVALID_PLUGIN_ERROR        (NPERR_BASE + 6)
+#define NPERR_INVALID_PLUGIN_DIR_ERROR    (NPERR_BASE + 7)
+#define NPERR_INCOMPATIBLE_VERSION_ERROR  (NPERR_BASE + 8)
+#define NPERR_INVALID_PARAM               (NPERR_BASE + 9)
+#define NPERR_INVALID_URL                 (NPERR_BASE + 10)
+#define NPERR_FILE_NOT_FOUND              (NPERR_BASE + 11)
+#define NPERR_NO_DATA                     (NPERR_BASE + 12)
+#define NPERR_STREAM_NOT_SEEKABLE         (NPERR_BASE + 13)
+
+/* Parts of npfunctions.h */
+
+typedef NPError (CDECL *NPP_NewProcPtr)(NPMIMEType,NPP,UINT16,INT16,char**,char**,NPSavedData*);
+typedef NPError (CDECL *NPP_DestroyProcPtr)(NPP,NPSavedData**);
+typedef NPError (CDECL *NPP_SetWindowProcPtr)(NPP,NPWindow*);
+typedef NPError (CDECL *NPP_NewStreamProcPtr)(NPP,NPMIMEType,NPStream*,NPBool,UINT16*);
+typedef NPError (CDECL *NPP_DestroyStreamProcPtr)(NPP,NPStream*,NPReason);
+typedef INT32 (CDECL *NPP_WriteReadyProcPtr)(NPP,NPStream*);
+typedef INT32 (CDECL *NPP_WriteProcPtr)(NPP,NPStream*,INT32,INT32,void*);
+typedef void (CDECL *NPP_StreamAsFileProcPtr)(NPP,NPStream*,const char*);
+typedef void (CDECL *NPP_PrintProcPtr)(NPP,NPPrint*);
+typedef INT16 (CDECL *NPP_HandleEventProcPtr)(NPP,void*);
+typedef void (CDECL *NPP_URLNotifyProcPtr)(NPP,const char*,NPReason,void*);
+typedef NPError (CDECL *NPP_GetValueProcPtr)(NPP,NPPVariable,void*);
+typedef NPError (CDECL *NPP_SetValueProcPtr)(NPP,NPNVariable,void*);
+typedef NPBool (CDECL *NPP_GotFocusPtr)(NPP,NPFocusDirection);
+typedef void (CDECL *NPP_LostFocusPtr)(NPP);
+
+typedef struct _NPPluginFuncs {
+    UINT16 size;
+    UINT16 version;
+    NPP_NewProcPtr newp;
+    NPP_DestroyProcPtr destroy;
+    NPP_SetWindowProcPtr setwindow;
+    NPP_NewStreamProcPtr newstream;
+    NPP_DestroyStreamProcPtr destroystream;
+    NPP_StreamAsFileProcPtr asfile;
+    NPP_WriteReadyProcPtr writeready;
+    NPP_WriteProcPtr write;
+    NPP_PrintProcPtr print;
+    NPP_HandleEventProcPtr event;
+    NPP_URLNotifyProcPtr urlnotify;
+    void *javaClass;
+    NPP_GetValueProcPtr getvalue;
+    NPP_SetValueProcPtr setvalue;
+    NPP_GotFocusPtr gotfocus;
+    NPP_LostFocusPtr lostfocus;
+} NPPluginFuncs;
+
+static NPError CDECL NPP_New(NPMIMEType pluginType, NPP instance, UINT16 mode, INT16 argc, char **argn,
+        char **argv, NPSavedData *saved)
+{
+    FIXME("(%s %p %x %d %p %p %p)\n", debugstr_a(pluginType), instance, mode, argc, argn, argv, saved);
+    return NPERR_GENERIC_ERROR;
+}
+
+static NPError CDECL NPP_Destroy(NPP instance, NPSavedData **save)
+{
+    FIXME("(%p %p)\n", instance, save);
+    return NPERR_GENERIC_ERROR;
+}
+
+static NPError CDECL NPP_SetWindow(NPP instance, NPWindow *window)
+{
+    FIXME("(%p %p)\n", instance, window);
+    return NPERR_GENERIC_ERROR;
+}
+
+static NPError CDECL NPP_NewStream(NPP instance, NPMIMEType type, NPStream *stream, NPBool seekable, UINT16 *stype)
+{
+    TRACE("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static NPError CDECL NPP_DestroyStream(NPP instance, NPStream *stream, NPReason reason)
+{
+    TRACE("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static INT32 CDECL NPP_WriteReady(NPP instance, NPStream *stream)
+{
+    TRACE("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static INT32 CDECL NPP_Write(NPP instance, NPStream *stream, INT32 offset, INT32 len, void *buffer)
+{
+    TRACE("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static void CDECL NPP_StreamAsFile(NPP instance, NPStream *stream, const char *fname)
+{
+    TRACE("\n");
+}
+
+static void CDECL NPP_Print(NPP instance, NPPrint *platformPrint)
+{
+    FIXME("\n");
+}
+
+static INT16 CDECL NPP_HandleEvent(NPP instance, void *event)
+{
+    TRACE("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static void CDECL NPP_URLNotify(NPP instance, const char *url, NPReason reason, void *notifyData)
+{
+    TRACE("\n");
+}
+
+static NPError CDECL NPP_GetValue(NPP instance, NPPVariable variable, void *ret_value)
+{
+    TRACE("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static NPError CDECL NPP_SetValue(NPP instance, NPNVariable variable, void *value)
+{
+    TRACE("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static NPBool CDECL NPP_GotFocus(NPP instance, NPFocusDirection direction)
+{
+    FIXME("\n");
+    return NPERR_GENERIC_ERROR;
+}
+
+static void CDECL NPP_LostFocus(NPP instance)
+{
+    FIXME("\n");
+}
+
+/***********************************************************************
+ *          NP_GetEntryPoints (npmshtml.@)
+ */
+NPError WINAPI NP_GetEntryPoints(NPPluginFuncs* funcs)
+{
+    TRACE("(%p)\n", funcs);
+
+    funcs->version = (NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR;
+    funcs->newp = NPP_New;
+    funcs->destroy = NPP_Destroy;
+    funcs->setwindow = NPP_SetWindow;
+    funcs->newstream = NPP_NewStream;
+    funcs->destroystream = NPP_DestroyStream;
+    funcs->asfile = NPP_StreamAsFile;
+    funcs->writeready = NPP_WriteReady;
+    funcs->write = NPP_Write;
+    funcs->print = NPP_Print;
+    funcs->event = NPP_HandleEvent;
+    funcs->urlnotify = NPP_URLNotify;
+    funcs->javaClass = NULL;
+    funcs->getvalue = NPP_GetValue;
+    funcs->setvalue = NPP_SetValue;
+    funcs->gotfocus = NPP_GotFocus;
+    funcs->lostfocus = NPP_LostFocus;
+
+    return NPERR_NO_ERROR;
+}
diff --git a/dlls/mshtml/nsiface.idl b/dlls/mshtml/nsiface.idl
index 0d82d7cbb91..48d4f6c090f 100644
--- a/dlls/mshtml/nsiface.idl
+++ b/dlls/mshtml/nsiface.idl
@@ -2899,3 +2899,122 @@ interface nsIDocumentObserver : nsIMutationObserver
     void BindToDocument(nsIDocument *aDocument, nsIContent *aContent);
     void DoneAddingChildren(nsIContent *aContent, PRBool aHaveNotified);
 }
+
+/* Parts of npapi.h */
+
+cpp_quote("#define NP_VERSION_MAJOR 0")
+cpp_quote("#define NP_VERSION_MINOR 25")
+
+typedef unsigned char NPBool;
+typedef INT16 NPError;
+typedef INT16 NPReason;
+typedef char *NPMIMEType;
+
+typedef struct _NPP {
+    void *pdata;
+    void *ndata;
+} NPP_t, *NPP;
+
+typedef struct _NPStream {
+    void *pdata;
+    void *ndata;
+    const char *url;
+    UINT32 end;
+    UINT32 lastmodified;
+    void *notifyData;
+    const char *headers;
+} NPStream;
+
+typedef struct _NPSavedData {
+    INT32 len;
+    void *buf;
+} NPSavedData;
+
+typedef struct _NPRect {
+    UINT16 top;
+    UINT16 left;
+    UINT16 bottom;
+    UINT16 right;
+} NPRect;
+
+typedef enum {
+    NPFocusNext = 0,
+    NPFocusPrevious = 1
+} NPFocusDirection;
+
+#define NP_ABI_MASK 0
+
+typedef enum {
+    NPPVpluginNameString = 1,
+    NPPVpluginDescriptionString,
+    NPPVpluginWindowBool,
+    NPPVpluginTransparentBool,
+    NPPVjavaClass,
+    NPPVpluginWindowSize,
+    NPPVpluginTimerInterval,
+    NPPVpluginScriptableInstance = (10 | NP_ABI_MASK),
+    NPPVpluginScriptableIID = 11,
+    NPPVjavascriptPushCallerBool = 12,
+    NPPVpluginKeepLibraryInMemory = 13,
+    NPPVpluginNeedsXEmbed = 14,
+    NPPVpluginScriptableNPObject = 15,
+    NPPVformValue = 16,
+    NPPVpluginUrlRequestsDisplayedBool = 17,
+    NPPVpluginWantsAllNetworkStreams = 18,
+    NPPVpluginNativeAccessibleAtkPlugId = 19,
+    NPPVpluginCancelSrcStream = 20,
+    NPPVSupportsAdvancedKeyHandling = 21
+} NPPVariable;
+
+typedef enum {
+    NPNVxDisplay = 1,
+    NPNVxtAppContext,
+    NPNVnetscapeWindow,
+    NPNVjavascriptEnabledBool,
+    NPNVasdEnabledBool,
+    NPNVisOfflineBool,
+    NPNVserviceManager = (10 | NP_ABI_MASK),
+    NPNVDOMElement     = (11 | NP_ABI_MASK),
+    NPNVDOMWindow      = (12 | NP_ABI_MASK),
+    NPNVToolkit        = (13 | NP_ABI_MASK),
+    NPNVSupportsXEmbedBool = 14,
+    NPNVWindowNPObject = 15,
+    NPNVPluginElementNPObject = 16,
+    NPNVSupportsWindowless = 17,
+    NPNVprivateModeBool = 18,
+    NPNVsupportsAdvancedKeyHandling = 21
+} NPNVariable;
+
+typedef enum {
+    NPWindowTypeWindow = 1,
+    NPWindowTypeDrawable
+} NPWindowType;
+
+typedef struct _NPWindow {
+    void *window;
+    INT32 x;
+    INT32 y;
+    UINT32 width;
+    UINT32 height;
+    NPRect clipRect;
+    NPWindowType type;
+} NPWindow;
+
+typedef struct _NPFullPrint {
+    NPBool pluginPrinted;
+    NPBool printOne;
+    void *platformPrint;
+} NPFullPrint;
+
+typedef struct _NPEmbedPrint {
+    NPWindow window;
+    void *platformPrint;
+} NPEmbedPrint;
+
+typedef struct _NPPrint {
+    UINT16 mode;
+    union {
+        NPFullPrint fullPrint;
+        NPEmbedPrint embedPrint;
+    } print;
+} NPPrint;