I think your SendKeys isn't opening the menu properly. Looks like you're opening the File menu and tabbing downwards to menu item 4 (Connect Network Registry).
Some information on SendKeys
here (MSDN) and
here (Stack Overflow)
You are sending ALT (which as a keystroke will highlight the menu) then ENTER (which should then open the first menu). Try instead to open the file menu in one operation by sending ALT+F
So instead of
SendKeys.Send("{%}")
SendKeys.Send("{ENTER}")
try
SendKeys.Send("%{f}")
Just one more thing - can you clarify "doesn't work"? Does the application open? Does the menu highlight but not select? Does the menu appear at all? I offer a solution to what I *think* might be the problem but your question is a little unclear.
Good luck,
Glen.