Do not leave not initialized fields in the structure passed to

dlls/shell32/shell.c

@@ -632,17 +632,10 @@ HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
     WCHAR *wVerb = NULL, *wFile = NULL, *wParameters = NULL, *wDirectory = NULL;
     HANDLE hProcess = 0;
 
-    if (lpOperation)
-        seiW.lpVerb = __SHCloneStrAtoW(&wVerb, lpOperation);
-
-    if (lpFile)
-        seiW.lpFile = __SHCloneStrAtoW(&wFile, lpFile);
-
-    if (lpParameters)
-        seiW.lpParameters = __SHCloneStrAtoW(&wParameters, lpParameters);
-
-    if (lpDirectory)
-        seiW.lpDirectory = __SHCloneStrAtoW(&wDirectory, lpDirectory);
+    seiW.lpVerb = lpOperation ? __SHCloneStrAtoW(&wVerb, lpOperation) : NULL;
+    seiW.lpFile = lpFile ? __SHCloneStrAtoW(&wFile, lpFile) : NULL;
+    seiW.lpParameters = lpParameters ? __SHCloneStrAtoW(&wParameters, lpParameters) : NULL;
+    seiW.lpDirectory = lpDirectory ? __SHCloneStrAtoW(&wDirectory, lpDirectory) : NULL;
 
     seiW.cbSize = sizeof(seiW);
     seiW.fMask = 0;