softpub.h: Add a GUID.
diff --git a/include/softpub.h b/include/softpub.h
index 963dadd..05a43e5 100644
--- a/include/softpub.h
+++ b/include/softpub.h
@@ -33,6 +33,9 @@
 #define WINTRUST_ACTION_TRUSTPROVIDER_TEST \
     { 0x573e31f8, 0xddba, 0x11d0, { 0x8c,0xcb,0x00,0xc0,0x4f,0xc2,0x95,0xee }}
 
+#define HTTPSPROV_ACTION \
+    { 0x573e31f8, 0xaaba, 0x11d0, { 0x8c,0xcb,0x00,0xc0,0x4f,0xc2,0x95,0xee }}
+
 #define OFFICESIGN_ACTION_VERIFY \
     { 0x5555c2cd, 0x17fb, 0x11d1, { 0x85,0xc4,0x00,0xc0,0x4f,0xc2,0x95,0xee }}