diff --git a/dlls/msxml3/factory.c b/dlls/msxml3/factory.c
index 5c7d015135b..bd42f1a9e90 100644
--- a/dlls/msxml3/factory.c
+++ b/dlls/msxml3/factory.c
@@ -253,7 +253,11 @@ HRESULT WINAPI DllGetClassObject( REFCLSID rclsid, REFIID riid, void **ppv )
     {
         cf = (IClassFactory*) &saxreadcf.lpVtbl;
     }
-    else if( IsEqualCLSID( rclsid, &CLSID_XMLHTTPRequest))
+    else if( IsEqualCLSID( rclsid, &CLSID_XMLHTTPRequest ) ||
+             IsEqualCLSID( rclsid, &CLSID_XMLHTTP26 ) ||
+             IsEqualCLSID( rclsid, &CLSID_XMLHTTP30 ) ||
+             IsEqualCLSID( rclsid, &CLSID_XMLHTTP40 ) ||
+             IsEqualCLSID( rclsid, &CLSID_XMLHTTP60 ))
     {
         cf = (IClassFactory*) &httpreqcf.lpVtbl;
     }
diff --git a/include/msxml2.idl b/include/msxml2.idl
index 444ebe8d678..da520d284a8 100644
--- a/include/msxml2.idl
+++ b/include/msxml2.idl
@@ -1330,13 +1330,45 @@ coclass FreeThreadedDOMDocument30
 }
 
 [
-    uuid(88d969c1-f192-11d4-a65f-0040963251e5),
+    uuid(88d969c1-f192-11d4-a65f-0040963251e5)
 ]
 coclass FreeThreadedDOMDocument40
 {
     [default] interface IXMLDOMDocument2;
     [default, source] dispinterface XMLDOMDocumentEvents;
-};
+}
+
+[
+    uuid(f5078f1e-c551-11d3-89b9-0000f81fe221)
+]
+coclass XMLHTTP26
+{
+    [default] interface IXMLHTTPRequest;
+}
+
+[
+    uuid(f5078f35-c551-11d3-89b9-0000f81fe221)
+]
+coclass XMLHTTP30
+{
+    [default] interface IXMLHTTPRequest;
+}
+
+[
+    uuid(88d969c5-f192-11d4-a65f-0040963251e5)
+]
+coclass XMLHTTP40
+{
+    [default] interface IXMLHTTPRequest;
+}
+
+[
+    uuid(88d96a0a-f192-11d4-a65f-0040963251e5)
+]
+coclass XMLHTTP60
+{
+    [default] interface IXMLHTTPRequest;
+}
 
 [
     uuid(373984c9-b845-449b-91e7-45ac83036ade)