Thank you. Your example works.

I had done similar, getting all drives into %ALL% and user input into %U%
And then show a message box with: Value of ALL = %ALL% >>>>> shows A:|C:|D:|E:
Value of U = %U% >>>>> shows C

But If %ALL% Contains %U% Then
does not work. ie. it think ALL does not contain C.

Since my script appears identical to yours, I am still puzzling why yours works and mine does not....