Exp Viewer by Fuzzy - fuzzyplays.com/ragnarok/roxp.zip
Needs to be "run as administrator" to be able to read from systems memory.
Tray icon has additional options
checkbox in main window enables/disables always on top
[C] button - switch between clients if you're running multiple clients at the same time
[R] button - reset tool/timer
if not playing in windowed mode it needs to be placed on a second monitor, it won't be displayed over fullscreen applications.