diff --git a/dlls/urlmon/bindctx.c b/dlls/urlmon/bindctx.c
index 83c8c39b749..328254c3bb6 100644
--- a/dlls/urlmon/bindctx.c
+++ b/dlls/urlmon/bindctx.c
@@ -705,13 +705,13 @@ static HRESULT WINAPI AsyncBindCtx_GetObjectParam(IBindCtx* iface, LPOLESTR pszk
     return IBindCtx_GetObjectParam(This->bindctx, pszkey, punk);
 }
 
-static HRESULT WINAPI AsyncBindCtx_RevokeObjectParam(IBindCtx *iface, LPOLESTR ppenum)
+static HRESULT WINAPI AsyncBindCtx_RevokeObjectParam(IBindCtx *iface, LPOLESTR pszkey)
 {
     AsyncBindCtx *This = BINDCTX_THIS(iface);
 
-    TRACE("(%p)->(%p)\n", This, ppenum);
+    TRACE("(%p)->(%s)\n", This, debugstr_w(pszkey));
 
-    return IBindCtx_RevokeObjectParam(This->bindctx, ppenum);
+    return IBindCtx_RevokeObjectParam(This->bindctx, pszkey);
 }
 
 static HRESULT WINAPI AsyncBindCtx_EnumObjectParam(IBindCtx *iface, IEnumString **pszkey)
@@ -820,9 +820,14 @@ HRESULT WINAPI CreateAsyncBindCtxEx(IBindCtx *ibind, DWORD options,
     if(reserved)
         WARN("reserved=%d\n", reserved);
 
-    hres = CreateBindCtx(0, &bindctx);
-    if(FAILED(hres))
-        return hres;
+    if(ibind) {
+        IBindCtx_AddRef(ibind);
+        bindctx = ibind;
+    }else {
+        hres = CreateBindCtx(0, &bindctx);
+        if(FAILED(hres))
+            return hres;
+    }
 
     ret = heap_alloc(sizeof(AsyncBindCtx));
 
diff --git a/dlls/urlmon/tests/url.c b/dlls/urlmon/tests/url.c
index 9be2de72e13..0dd9c81360a 100644
--- a/dlls/urlmon/tests/url.c
+++ b/dlls/urlmon/tests/url.c
@@ -1191,11 +1191,13 @@ static void test_CreateAsyncBindCtx(void)
 
 static void test_CreateAsyncBindCtxEx(void)
 {
-    IBindCtx *bctx = NULL, *bctx_arg = NULL;
+    IBindCtx *bctx = NULL, *bctx2 = NULL, *bctx_arg = NULL;
     IUnknown *unk;
     BIND_OPTS bindopts;
     HRESULT hres;
 
+    static WCHAR testW[] = {'t','e','s','t',0};
+
     hres = CreateAsyncBindCtxEx(NULL, 0, NULL, NULL, NULL, 0);
     ok(hres == E_INVALIDARG, "CreateAsyncBindCtx failed: %08x, expected E_INVALIDARG\n", hres);
 
@@ -1248,8 +1250,23 @@ static void test_CreateAsyncBindCtxEx(void)
     if(SUCCEEDED(hres))
         IUnknown_Release(unk);
 
-    if(SUCCEEDED(hres))
-        IBindCtx_Release(bctx);
+    IBindCtx_Release(bctx);
+
+    hres = CreateBindCtx(0, &bctx2);
+    ok(hres == S_OK, "CreateBindCtx failed: %08x\n", hres);
+
+    hres = CreateAsyncBindCtxEx(bctx2, 0, NULL, NULL, &bctx, 0);
+    ok(hres == S_OK, "CreateAsyncBindCtxEx failed: %08x\n", hres);
+
+    hres = IBindCtx_RegisterObjectParam(bctx2, testW, (IUnknown*)&Protocol);
+    ok(hres == S_OK, "RegisterObjectParam failed: %08x\n", hres);
+
+    hres = IBindCtx_GetObjectParam(bctx, testW, &unk);
+    ok(hres == S_OK, "GetObjectParam failed: %08x\n", hres);
+    ok(unk == (IUnknown*)&Protocol, "unexpected unk %p\n", unk);
+
+    IBindCtx_Release(bctx);
+    IBindCtx_Release(bctx2);
 }
 
 static void test_bscholder(IBindStatusCallback *holder)