On 20 Mar 2010, "J. P. Gilliver (John)"
wrote in microsoft.public.windowsxp.customize:

Seconded. (I _very_ occasionally find it has gone away - i. e. the
default Windows clock is back - but running it again restores
normality; I _think_ it's only, generally, when some other aspect
of Windows has caused something to disrupt lots, normally closing
many of the items in the tray as well.

Very occasionally Explorer will crash on me, and it takes TClockEx out
along with it.

I haven't tried Tclock.

I tried TClock before I I tried TClockEx. It works fine, and it
visually blends into XP's gradated task bar better than Ex. But it
doesn't have the calendar, which I use a lot.

I was going to say, just for interest, what memory and CPU
resources TClockEx is using on this computer, but unless I bring
up its properties window, I can't see it in the list of running
processes. In fact it's most odd - I just tried turning it off (it
really was off, the boring clock came back) and then back on
again, and the number of running processes didn't change.

I did the same test, and like you I couldn't find it listed as a
running process or detect any change in memory when it ran.