Removing programs on MBP?

[WhySoSerious]

how do i get this dang program off my MBP?

program is "stuffit"...which is used to extract .rar files.

i keep getting a message saying certain files are still in use, but in the Activity Monitor, i don't see it in use.

 

[r.j.s]

You may need to restart in order to empty it. Or in activity monitor, you may need to show processes from all users in order to find and kill it ( if you aren't already)