diff --git a/dlls/urlmon/format.c b/dlls/urlmon/format.c
index 3b7bdbd3f77..309c8cd3b1b 100644
--- a/dlls/urlmon/format.c
+++ b/dlls/urlmon/format.c
@@ -31,6 +31,8 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(urlmon);
 
+static WCHAR wszEnumFORMATETC[] = {'_','E','n','u','m','F','O','R','M','A','T','E','T','C','_',0};
+
 typedef struct {
     const IEnumFORMATETCVtbl *lpEnumFORMATETCVtbl;
 
@@ -189,3 +191,32 @@ HRESULT WINAPI CreateFormatEnumerator(UINT cfmtetc, FORMATETC *rgfmtetc,
     *ppenumfmtetc = EnumFORMATETC_Create(cfmtetc, rgfmtetc, 0);
     return S_OK;
 }
+
+/**********************************************************
+ *      RegisterFormatEnumerator (urlmon.@)
+ */
+HRESULT WINAPI RegisterFormatEnumerator(LPBC pBC, IEnumFORMATETC *pEFetc, DWORD reserved)
+{
+    TRACE("(%p %p %ld)\n", pBC, pEFetc, reserved);
+
+    if(reserved)
+        WARN("reserved != 0\n");
+
+    if(!pBC || !pEFetc)
+        return E_INVALIDARG;
+
+    return IBindCtx_RegisterObjectParam(pBC, wszEnumFORMATETC, (IUnknown*)pEFetc);
+}
+
+/**********************************************************
+ *      RevokeFormatEnumerator (urlmon.@)
+ */
+HRESULT WINAPI RevokeFormatEnumerator(LPBC pbc, IEnumFORMATETC *pEFetc)
+{
+    TRACE("(%p %p)\n", pbc, pEFetc);
+
+    if(!pbc)
+        return E_INVALIDARG;
+
+    return IBindCtx_RevokeObjectParam(pbc, wszEnumFORMATETC);
+}
diff --git a/dlls/urlmon/tests/misc.c b/dlls/urlmon/tests/misc.c
index 804aebbf5bc..8249f892ab9 100644
--- a/dlls/urlmon/tests/misc.c
+++ b/dlls/urlmon/tests/misc.c
@@ -129,7 +129,81 @@ static void test_CreateFormatEnum(void)
     IEnumFORMATETC_Release(fenum);
 }
 
+static void test_RegisterFormatEnumerator(void)
+{
+    IBindCtx *bctx = NULL;
+    IEnumFORMATETC *format = NULL, *format2 = NULL;
+    IUnknown *unk = NULL;
+    HRESULT hres;
+
+    static FORMATETC formatetc = {0,NULL,0,0,0};
+    static WCHAR wszEnumFORMATETC[] =
+        {'_','E','n','u','m','F','O','R','M','A','T','E','T','C','_',0};
+
+    CreateBindCtx(0, &bctx);
+
+    hres = CreateFormatEnumerator(1, &formatetc, &format);
+    ok(hres == S_OK, "CreateFormatEnumerator failed: %08lx\n", hres);
+    if(FAILED(hres))
+        return;
+
+    hres = RegisterFormatEnumerator(NULL, format, 0);
+    ok(hres == E_INVALIDARG,
+            "RegisterFormatEnumerator failed: %08lx, expected E_INVALIDARG\n", hres);
+    hres = RegisterFormatEnumerator(bctx, NULL, 0);
+    ok(hres == E_INVALIDARG,
+            "RegisterFormatEnumerator failed: %08lx, expected E_INVALIDARG\n", hres);
+
+    hres = RegisterFormatEnumerator(bctx, format, 0);
+    ok(hres == S_OK, "RegisterFormatEnumerator failed: %08lx\n", hres);
+
+    hres = IBindCtx_GetObjectParam(bctx, wszEnumFORMATETC, &unk);
+    ok(hres == S_OK, "GetObjectParam failed: %08lx\n", hres);
+    ok(unk == (IUnknown*)format, "unk != format\n");
+
+    hres = RevokeFormatEnumerator(NULL, format);
+    ok(hres == E_INVALIDARG,
+            "RevokeFormatEnumerator failed: %08lx, expected E_INVALIDARG\n", hres);
+
+    hres = RevokeFormatEnumerator(bctx, format);
+    ok(hres == S_OK, "RevokeFormatEnumerator failed: %08lx\n", hres);
+
+    hres = RevokeFormatEnumerator(bctx, format);
+    ok(hres == E_FAIL, "RevokeFormatEnumerator failed: %08lx, expected E_FAIL\n", hres);
+
+    hres = IBindCtx_GetObjectParam(bctx, wszEnumFORMATETC, &unk);
+    ok(hres == E_FAIL, "GetObjectParam failed: %08lx, expected E_FAIL\n", hres);
+
+    hres = RegisterFormatEnumerator(bctx, format, 0);
+    ok(hres == S_OK, "RegisterFormatEnumerator failed: %08lx\n", hres);
+
+    hres = CreateFormatEnumerator(1, &formatetc, &format2);
+    ok(hres == S_OK, "CreateFormatEnumerator failed: %08lx\n", hres);
+
+    if(SUCCEEDED(hres)) {
+        hres = RevokeFormatEnumerator(bctx, format);
+        ok(hres == S_OK, "RevokeFormatEnumerator failed: %08lx\n", hres);
+
+        IEnumFORMATETC_Release(format2);
+    }
+
+    hres = IBindCtx_GetObjectParam(bctx, wszEnumFORMATETC, &unk);
+    ok(hres == E_FAIL, "GetObjectParam failed: %08lx, expected E_FAIL\n", hres);
+
+    IEnumFORMATETC_Release(format);
+
+    hres = RegisterFormatEnumerator(bctx, format, 0);
+    ok(hres == S_OK, "RegisterFormatEnumerator failed: %08lx\n", hres);
+    hres = RevokeFormatEnumerator(bctx, NULL);
+    ok(hres == S_OK, "RevokeFormatEnumerator failed: %08lx\n", hres);
+    hres = IBindCtx_GetObjectParam(bctx, wszEnumFORMATETC, &unk);
+    ok(hres == E_FAIL, "GetObjectParam failed: %08lx, expected E_FAIL\n", hres);
+
+    IBindCtx_Release(bctx);
+}
+
 START_TEST(misc)
 {
     test_CreateFormatEnum();
+    test_RegisterFormatEnumerator();
 }
diff --git a/dlls/urlmon/urlmon.spec b/dlls/urlmon/urlmon.spec
index 8461a62f8eb..d2311e1f027 100644
--- a/dlls/urlmon/urlmon.spec
+++ b/dlls/urlmon/urlmon.spec
@@ -56,12 +56,12 @@
 @ stdcall ObtainUserAgentString(long str ptr)
 @ stub PrivateCoInstall
 @ stdcall RegisterBindStatusCallback(ptr ptr ptr long)
-@ stub RegisterFormatEnumerator
+@ stdcall RegisterFormatEnumerator(ptr ptr long)
 @ stub RegisterMediaTypeClass
 @ stub RegisterMediaTypes
 @ stdcall ReleaseBindInfo(ptr)
 @ stdcall RevokeBindStatusCallback(ptr ptr)
-@ stub RevokeFormatEnumerator
+@ stdcall RevokeFormatEnumerator(ptr ptr)
 @ stub SetSoftwareUpdateAdvertisementState
 @ stub URLDownloadA
 @ stub URLDownloadToCacheFileA