diff --git a/include/msxml2.idl b/include/msxml2.idl
index f9c10efcfc2..66805185c4b 100644
--- a/include/msxml2.idl
+++ b/include/msxml2.idl
@@ -25,6 +25,12 @@ import "unknwn.idl";
 import "objidl.idl";
 import "oaidl.idl";
 
+#if !defined(progid) && !defined(__WIDL__)
+#define threading(model)
+#define progid(str)
+#define vi_progid(str)
+#endif
+
 [
     uuid(f5078f18-c551-11d3-89b9-0000f81fe221),
     version(3.0),
diff --git a/include/xmldom.idl b/include/xmldom.idl
index 45e9f138594..a38859252a2 100644
--- a/include/xmldom.idl
+++ b/include/xmldom.idl
@@ -19,6 +19,12 @@
 #include <xmldomdid.h>
 #include <idispids.h>
 
+#if !defined(progid) && !defined(__WIDL__)
+#define threading(model)
+#define progid(str)
+#define vi_progid(str)
+#endif
+
 interface IXMLDOMImplementation;
 interface IXMLDOMNode;
 interface IXMLDOMDocumentFragment;
diff --git a/include/xmldso.idl b/include/xmldso.idl
index cde98dc89b0..86f2a3a86b9 100644
--- a/include/xmldso.idl
+++ b/include/xmldso.idl
@@ -19,6 +19,12 @@
 #include <idispids.h>
 #include <xmldsodid.h>
 
+#if !defined(progid) && !defined(__WIDL__)
+#define threading(model)
+#define progid(str)
+#define vi_progid(str)
+#endif
+
 interface IXMLDOMDocument;
 
 [