- _sntprintf_s(ofn.lpstrFile, MAX_PATH, _TRUNCATE, _T(":%s:"), message_string(NSSM_GUI_BROWSE_FILTER_DIRECTORIES));\r
+ _sntprintf_s(ofn.lpstrFile, _countof(ofn.lpstrFile), _TRUNCATE, _T(":%s:"), message_string(NSSM_GUI_BROWSE_FILTER_DIRECTORIES));\r
+ ofn.nMaxFile = DIR_LENGTH;\r