Hi,
I think there's two errors in your code.
When you pass a parameter to something doing this :
"do ToolTipMenu.mpr with this"
You need, in ToolTipMenu.mpr, to declare "LPARAMETERS p_name_of_your_param" usually on the first line of code...
I think the second error is that you don't need to send a parameter if you want to use "_Screen.ActiveForm.ShowTips = .t.". If you choose the parameter way the syntax should be : "p_name_of_your_param.ShowTips = .t."
Regards