// launch a program or document file
-extern BOOL launch_file(HWND hwnd, LPCTSTR cmd, UINT nCmdShow, LPCTSTR parameters=NULL);
+extern BOOL launch_file(HWND hwnd, LPCTSTR cmd, UINT nCmdShow=SW_SHOWNORMAL, LPCTSTR parameters=NULL);
#ifdef UNICODE
-extern BOOL launch_fileA(HWND hwnd, LPSTR cmd, UINT nCmdShow, LPCSTR parameters=NULL);
+extern BOOL launch_fileA(HWND hwnd, LPSTR cmd, UINT nCmdShow=SW_SHOWNORMAL, LPCSTR parameters=NULL);
#else
#define launch_fileA launch_file
#endif