This one gauge

[Tyler012]

When I had my older computer and played fs9, I had this TCAS gauge I really enjoyed, it required FSUIPC, but actually worked, had audible warnings, and had a test button. Anyone know which one I'm talking about, and can you point me in the direction of it?

[microlight]

You could be referring to Lee Hetherington's TCAS gauge, which uses the unregistered version of FSUIPC and which does what you indicate. It's not available here, so search for ilh_tcas_v4.zip in the Avsim library.