diff --git a/include/corhdr.h b/include/corhdr.h
index 4064efd6067..5ca84fe9363 100644
--- a/include/corhdr.h
+++ b/include/corhdr.h
@@ -49,10 +49,82 @@ typedef enum CorTokenType
     mdtBaseType                 = 0x72000000,
 } CorTokenType;
 
+typedef enum CorElementType
+{
+    ELEMENT_TYPE_END            = 0x00,
+    ELEMENT_TYPE_VOID           = 0x01,
+    ELEMENT_TYPE_BOOLEAN        = 0x02,
+    ELEMENT_TYPE_CHAR           = 0x03,
+    ELEMENT_TYPE_I1             = 0x04,
+    ELEMENT_TYPE_U1             = 0x05,
+    ELEMENT_TYPE_I2             = 0x06,
+    ELEMENT_TYPE_U2             = 0x07,
+    ELEMENT_TYPE_I4             = 0x08,
+    ELEMENT_TYPE_U4             = 0x09,
+    ELEMENT_TYPE_I8             = 0x0a,
+    ELEMENT_TYPE_U8             = 0x0b,
+    ELEMENT_TYPE_R4             = 0x0c,
+    ELEMENT_TYPE_R8             = 0x0d,
+    ELEMENT_TYPE_STRING         = 0x0e,
+    ELEMENT_TYPE_PTR            = 0x0f,
+    ELEMENT_TYPE_BYREF          = 0x10,
+    ELEMENT_TYPE_VALUETYPE      = 0x11,
+    ELEMENT_TYPE_CLASS          = 0x12,
+    ELEMENT_TYPE_VAR            = 0x13,
+    ELEMENT_TYPE_ARRAY          = 0x14,
+    ELEMENT_TYPE_GENERICINST    = 0x15,
+    ELEMENT_TYPE_TYPEDBYREF     = 0x16,
+    ELEMENT_TYPE_I              = 0x18,
+    ELEMENT_TYPE_U              = 0x19,
+    ELEMENT_TYPE_FNPTR          = 0x1b,
+    ELEMENT_TYPE_OBJECT         = 0x1c,
+    ELEMENT_TYPE_SZARRAY        = 0x1d,
+    ELEMENT_TYPE_MVAR           = 0x1e,
+    ELEMENT_TYPE_CMOD_REQD      = 0x1f,
+    ELEMENT_TYPE_CMOD_OPT       = 0x20,
+    ELEMENT_TYPE_INTERNAL       = 0x21,
+    ELEMENT_TYPE_MAX            = 0x22,
+    ELEMENT_TYPE_MODIFIER       = 0x40,
+    ELEMENT_TYPE_SENTINEL       = 0x01 | ELEMENT_TYPE_MODIFIER,
+    ELEMENT_TYPE_PINNED         = 0x05 | ELEMENT_TYPE_MODIFIER,
+    ELEMENT_TYPE_R4_HFA         = 0x06 | ELEMENT_TYPE_MODIFIER,
+    ELEMENT_TYPE_R8_HFA         = 0x07 | ELEMENT_TYPE_MODIFIER,
+
+} CorElementType;
+
 #define RidToToken(rid,tktype) ((rid) |= (tktype))
 #define TokenFromRid(rid,tktype) ((rid) | (tktype))
 #define RidFromToken(tk) ((RID)((tk) & 0x00ffffff))
 #define TypeFromToken(tk) ((ULONG32)((tk) & 0xff000000))
 #define IsNilToken(tk) ((RidFromToken(tk)) == 0)
 
+typedef LPVOID  mdScope;
+typedef ULONG32 mdToken;
+
+typedef mdToken mdModule;
+typedef mdToken mdTypeRef;
+typedef mdToken mdTypeDef;
+typedef mdToken mdFieldDef;
+typedef mdToken mdMethodDef;
+typedef mdToken mdParamDef;
+typedef mdToken mdInterfaceImpl;
+typedef mdToken mdMemberRef;
+typedef mdToken mdCustomAttribute;
+typedef mdToken mdPermission;
+typedef mdToken mdSignature;
+typedef mdToken mdEvent;
+typedef mdToken mdProperty;
+typedef mdToken mdModuleRef;
+typedef mdToken mdAssembly;
+typedef mdToken mdAssemblyRef;
+typedef mdToken mdFile;
+typedef mdToken mdExportedType;
+typedef mdToken mdManifestResource;
+typedef mdToken mdTypeSpec;
+typedef mdToken mdGenericParam;
+typedef mdToken mdMethodSpec;
+typedef mdToken mdGenericParamConstraint;
+typedef mdToken mdString;
+typedef mdToken mdCPToken;
+
 #endif /* __WINE_CORHDR_H */