Added mshtml.idl.

diff --git a/include/Makefile.in b/include/Makefile.in
index a034f0b..db47cc2 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -18,6 +18,7 @@
 	mediaobj.idl \
 	mlang.idl \
 	mmstream.idl \
+	mshtml.idl \
 	oaidl.idl \
 	objidl.idl \
 	ocidl.idl \
@@ -156,6 +157,7 @@
 	msacmdlg.h \
 	msacmdrv.h \
 	mscat.h \
+	mshtmdid.h \
 	msi.h \
 	msiquery.h \
 	mssip.h \