Run Logon button under custom ribbon tab using VBA

[v2k2apj]

Hi Guru

I have custom ribbon tab in my excel 2010 & there is a Logon button under that tab..

Whenever user open the excel then it should directly run the Logon button ..

Is is possible with VBA ? Please refere attached doc

Thanks !!

[royUK]

There's no attachment.

Why do you need someone to click a button? Use the WorkBook_Open event