diff --git a/dlls/ole32/compobj.c b/dlls/ole32/compobj.c
index df234498e65..6d9904a1650 100644
--- a/dlls/ole32/compobj.c
+++ b/dlls/ole32/compobj.c
@@ -3138,9 +3138,7 @@ HRESULT WINAPI DECLSPEC_HOTPATCH CoGetClassObject(
 
     if (CLSCTX_INPROC & dwClsContext)
     {
-        ASSEMBLY_FILE_DETAILED_INFORMATION *file_info = NULL;
         ACTCTX_SECTION_KEYED_DATA data;
-        const CLSID *clsid = NULL;
 
         data.cbSize = sizeof(data);
         /* search activation context first */
@@ -3153,46 +3151,11 @@ HRESULT WINAPI DECLSPEC_HOTPATCH CoGetClassObject(
             clsreg.u.actctx.module_name = (WCHAR *)((BYTE *)data.lpSectionBase + comclass->name_offset);
             clsreg.u.actctx.hactctx = data.hActCtx;
             clsreg.u.actctx.threading_model = comclass->model;
-            clsid = &comclass->clsid;
-        }
-        else if (FindActCtxSectionGuid(FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, NULL,
-                ACTIVATION_CONTEXT_SECTION_COM_INTERFACE_REDIRECTION, rclsid, &data))
-        {
-            ACTIVATION_CONTEXT_QUERY_INDEX query_index;
-            SIZE_T required_len = 0;
-
-            query_index.ulAssemblyIndex = data.ulAssemblyRosterIndex - 1;
-            query_index.ulFileIndexInAssembly = 0;
-
-            QueryActCtxW(0, data.hActCtx, &query_index, FileInformationInAssemblyOfAssemblyInActivationContext,
-                    NULL, 0, &required_len);
-            if (required_len)
-            {
-                file_info = heap_alloc(required_len);
-                if (file_info)
-                {
-                    if (QueryActCtxW(0, data.hActCtx, &query_index, FileInformationInAssemblyOfAssemblyInActivationContext,
-                            file_info, required_len, &required_len))
-                    {
-                        clsreg.u.actctx.module_name = file_info->lpFileName;
-                        clsreg.u.actctx.hactctx = data.hActCtx;
-                        clsreg.u.actctx.threading_model = ThreadingModel_Both;
-                        clsid = rclsid;
-                    }
-                    else
-                        heap_free(file_info);
-                }
-            }
-        }
-
-        if (clsreg.u.actctx.hactctx)
-        {
             clsreg.origin = CLASS_REG_ACTCTX;
 
-            hres = get_inproc_class_object(apt, &clsreg, clsid, iid, !(dwClsContext & WINE_CLSCTX_DONT_HOST), ppv);
-            ReleaseActCtx(clsreg.u.actctx.hactctx);
+            hres = get_inproc_class_object(apt, &clsreg, &comclass->clsid, iid, !(dwClsContext & WINE_CLSCTX_DONT_HOST), ppv);
+            ReleaseActCtx(data.hActCtx);
             apartment_release(apt);
-            heap_free(file_info);
             return hres;
         }
     }
diff --git a/dlls/ole32/tests/compobj.c b/dlls/ole32/tests/compobj.c
index d6ccbc58823..eb172aac28d 100644
--- a/dlls/ole32/tests/compobj.c
+++ b/dlls/ole32/tests/compobj.c
@@ -347,6 +347,32 @@ static const char actctx_manifest[] =
 "    </clrClass>"
 "</assembly>";
 
+static const char actctx_manifest2[] =
+"<assembly xmlns=\"urn:schemas-microsoft-com:asm.v1\" manifestVersion=\"1.0\">"
+"<assemblyIdentity version=\"1.2.3.4\"  name=\"Wine.Test\" type=\"win32\""
+" publicKeyToken=\"6595b6414666f1df\" />"
+"<file name=\"testlib.dll\">"
+"    <comInterfaceProxyStub "
+"        name=\"Testiface7\""
+"        iid=\"{52222222-1234-1234-1234-56789abcdef0}\""
+"        proxyStubClsid32=\"{82222222-1234-1234-1234-56789abcdef0}\""
+"        threadingModel=\"Apartment\""
+"    />"
+"</file>"
+"<file name=\"testlib4.dll\">"
+"    <comInterfaceProxyStub "
+"        name=\"Testiface8\""
+"        iid=\"{92222222-1234-1234-1234-56789abcdef0}\""
+"        threadingModel=\"Apartment\""
+"    />"
+"</file>"
+"    <comInterfaceExternalProxyStub "
+"        name=\"Iifaceps3\""
+"        iid=\"{42222222-1234-1234-1234-56789abcdef0}\""
+"        proxyStubClsid32=\"{66666666-8888-7777-6666-555555555555}\""
+"    />"
+"</assembly>";
+
 DEFINE_GUID(CLSID_Testclass, 0x12345678, 0x1234, 0x1234, 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0);
 
 static void test_ProgIDFromCLSID(void)
@@ -692,6 +718,28 @@ static void test_CoCreateInstance(void)
     test_apt_type(APTTYPE_CURRENT, APTTYPEQUALIFIER_NONE);
 }
 
+struct comclassredirect_data
+{
+    ULONG size;
+    ULONG flags;
+    DWORD model;
+    GUID  clsid;
+    GUID  alias;
+    GUID  clsid2;
+    GUID  tlid;
+    ULONG name_len;
+    ULONG name_offset;
+    ULONG progid_len;
+    ULONG progid_offset;
+    ULONG clrdata_len;
+    ULONG clrdata_offset;
+    DWORD miscstatus;
+    DWORD miscstatuscontent;
+    DWORD miscstatusthumbnail;
+    DWORD miscstatusicon;
+    DWORD miscstatusdocprint;
+};
+
 static void test_CoGetClassObject(void)
 {
     HRESULT hr;
@@ -763,6 +811,53 @@ static void test_CoGetClassObject(void)
         deactivate_context(handle, cookie);
     }
 
+    if ((handle = activate_context(actctx_manifest2, &cookie)))
+    {
+        struct comclassredirect_data *comclass;
+        ACTCTX_SECTION_KEYED_DATA data;
+        BOOL ret;
+
+        /* This one will load test dll and get back specific error code. */
+        hr = CoGetClassObject(&IID_Testiface7, CLSCTX_INPROC_SERVER, NULL, &IID_IUnknown, (void **)&pUnk);
+        ok(hr == 0x80001235 || broken(hr == HRESULT_FROM_WIN32(ERROR_MOD_NOT_FOUND)) /* winxp */, "Unexpected hr %#x.\n", hr);
+
+        hr = CoGetClassObject(&IID_Testiface8, CLSCTX_INPROC_SERVER, NULL, &IID_IUnknown, (void **)&pUnk);
+        ok(FAILED(hr), "Unexpected hr %#x.\n", hr);
+
+        memset(&data, 0, sizeof(data));
+        data.cbSize = sizeof(data);
+        ret = FindActCtxSectionGuid(0, NULL, ACTIVATION_CONTEXT_SECTION_COM_INTERFACE_REDIRECTION, &IID_Testiface8, &data);
+        ok(ret, "Section not found.\n");
+
+        memset(&data, 0, sizeof(data));
+        data.cbSize = sizeof(data);
+
+        /* External proxy-stubs are not accessible. */
+        ret = FindActCtxSectionGuid(0, NULL, ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION, &IID_Testiface3, &data);
+        ok(!ret, "Unexpected return value.\n");
+
+        ret = FindActCtxSectionGuid(0, NULL, ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION, &IID_TestPS, &data);
+        ok(!ret, "Unexpected return value.\n");
+
+        ret = FindActCtxSectionGuid(0, NULL, ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION, &IID_Testiface7, &data);
+        ok(ret, "Unexpected return value.\n");
+
+        ret = FindActCtxSectionGuid(0, NULL, ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION, &IID_Testiface4, &data);
+        ok(!ret, "Unexpected return value.\n");
+
+        ret = FindActCtxSectionGuid(0, NULL, ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION, &IID_Testiface8, &data);
+        ok(ret, "Unexpected return value.\n");
+
+        comclass = data.lpData;
+        if (comclass)
+        {
+            WCHAR *name = (WCHAR *)((char *)data.lpSectionBase + comclass->name_offset);
+            ok(!lstrcmpW(name, L"testlib4.dll"), "Unexpected module name %s.\n", wine_dbgstr_w(name));
+        }
+
+        deactivate_context(handle, cookie);
+    }
+
     CoUninitialize();
 }