I use opensheet() but occasionally throw runtime errors.
Closing the program and turned on, it's executed normally.
↓↓↓ My code: ↓↓↓
string ls_prog
w_sheet lw_prog
ls_prog = "w_prog"
try
Opensheet(lw_prog, ls_prog, frame, 0, Original!)
catch (runtimeerror ex)
Messagebox('', '['+ls_prog+'] error!')
end try