urlmon: Create a message window for each binding to make sure they are cleaned up properly.

diff --git a/dlls/urlmon/binding.c b/dlls/urlmon/binding.c
index 84e4186..d2b3ca9 100644
--- a/dlls/urlmon/binding.c
+++ b/dlls/urlmon/binding.c

@@ -250,19 +250,13 @@
         wndclass.hInstance = URLMON_hInstance;
 
         wnd_class = RegisterClassExW(&wndclass);
+        if (!wnd_class && GetLastError() == ERROR_CLASS_ALREADY_EXISTS)
+            wnd_class = 1;
     }
 
-    if(!urlmon_tls)
-        urlmon_tls = TlsAlloc();
-
-    hwnd = TlsGetValue(urlmon_tls);
-    if(hwnd)
-        return hwnd;
-
-    hwnd = CreateWindowExW(0, MAKEINTATOMW(wnd_class),
+    hwnd = CreateWindowExW(0, wszURLMonikerNotificationWindow,
                            wszURLMonikerNotificationWindow, 0, 0, 0, 0, 0, HWND_MESSAGE,
                            NULL, URLMON_hInstance, NULL);
-    TlsSetValue(urlmon_tls, hwnd);
 
     TRACE("hwnd = %p\n", hwnd);
 
@@ -691,6 +685,8 @@
     TRACE("(%p) ref=%d\n", This, ref);
 
     if(!ref) {
+        if (This->notif_hwnd)
+            DestroyWindow( This->notif_hwnd );
         if(This->callback)
             IBindStatusCallback_Release(This->callback);
         if(This->protocol)

diff --git a/dlls/urlmon/urlmon_main.c b/dlls/urlmon/urlmon_main.c
index f7e281e..b083871 100644
--- a/dlls/urlmon/urlmon_main.c
+++ b/dlls/urlmon/urlmon_main.c

@@ -43,8 +43,6 @@
 HINSTANCE URLMON_hInstance = 0;
 static HMODULE hCabinet = NULL;
 
-DWORD urlmon_tls = 0;
-
 static void init_session(BOOL);
 
 /***********************************************************************
@@ -62,8 +60,6 @@
 	break;
 
     case DLL_PROCESS_DETACH:
-        if(urlmon_tls)
-            TlsFree(urlmon_tls);
         if (hCabinet)
             FreeLibrary(hCabinet);
         hCabinet = NULL;

diff --git a/dlls/urlmon/urlmon_main.h b/dlls/urlmon/urlmon_main.h
index 240fdfe..4e6e214 100644
--- a/dlls/urlmon/urlmon_main.h
+++ b/dlls/urlmon/urlmon_main.h

@@ -59,6 +59,4 @@
 
 HRESULT start_binding(LPCWSTR url, IBindCtx *pbc, REFIID riid, void **ppv);
 
-extern DWORD urlmon_tls;
-
 #endif /* __WINE_URLMON_MAIN_H */