[Bug 39275] Unhandled exception HtmlHelpA after starting Print Shop Deluxe 15

https://bugs.winehq.org/show_bug.cgi?id=39275

--- Comment #3 from Martin Fontaigne  ---
I found an old wine commit 7293f00d9dccf1411ed84817755c6378377bbc33 dated
December 13, 2007 that had the following portion in the patch:

/* FIXME: pszCustomTabs is a list of multiple zero-terminated strings so
ReadString won't
      * work in this case
      */
 #if 0
-    pHHWinType->pszCustomTabs = CHM_ReadString(pChmInfo,
(DWORD)pHHWinType->pszCustomTabs);
+    info->WinType.pszCustomTabs = info->pszCustomTabs =
CHM_ReadString(pChmInfo, (DWORD_PTR)info->WinType.pszCustomTabs);
 #endif

Maybe it was never meant to be just a string, and passing -1 means it's an
empty list.