Index: src/ch/ch.cpp
===================================================================
diff -u -N -r633a533cb6e741d44fe28aa56339e1d2709b1b27 -r1931a815738da9a9cdbc959f4338b2b4aaaac842
--- src/ch/ch.cpp	(.../ch.cpp)	(revision 633a533cb6e741d44fe28aa56339e1d2709b1b27)
+++ src/ch/ch.cpp	(.../ch.cpp)	(revision 1931a815738da9a9cdbc959f4338b2b4aaaac842)
@@ -597,7 +597,7 @@
 
 			TCHAR szPath[_MAX_PATH];
 			_sntprintf(szPath, _MAX_PATH, _T("::/%lu.txt"), (pHelp->dwContextId >> 16) & 0x7fff);
-			HHelp(GetDesktopWindow(), szPath, HH_DISPLAY_TEXT_POPUP, (DWORD)&hhp);
+			HHelp(GetDesktopWindow(), szPath, HH_DISPLAY_TEXT_POPUP, (DWORD_PTR)&hhp);
 
 			break;
 		}