You need to use the commondialog control. So, Click the Project menu, then select componants. In the new window find microsoft common dialog control, and put a check in it. Now Hit Ok. A new control appears in the toolbox, double click it (or drag it to the form). Then, in a command button (or whenever you want to use it), do this:
dim chosenfilename as string
chosenfilename = commondialog1.filename
if chosenfilename = vbnullstring then
msgbox "Please Select A File"
After the code above, The variable chosenfilename with contain the path and filename to whatever the user selected.