Quick report on ClamWin Antivirus and a question

I installed the free ClamWin antivirus on my Windows Me system. My hard
disk has about 1.4 gigs of files. I ran ClamWin; it took nine hours to
scan my system (!).

Sygate firewall was running, but in its "block all" mode. It's possible
that the firewall may have slowed the performance slightly becuase
Sygate runs processes almost constantly on my system.

I decided to uninstall ClamWin for the reasons I'm outlining below.
First some good stuff:

It appears that the virus signatures are updated every day. This is very
good maintenance. I've got the impression that the program is very
thorough, which is also good.

Now for the problems:
- Despite operating as a stand-alone utility, the program is actually
installed to the degree that it's a startup item that sits in the system
tray. So, it's adding to the system's load of TSR bloat. It's not one of
those "nice" ones that's in a startup group where you can put it
somewhere else; it starts up from a registry entry (boo).
- User configuration is very limited. There's no option to turn off the
autoloading and just run it as a nice, simple .exe file when desired.
There's almost no way that the user can affect the program's performance.
- There's no display whatsoever of the progress while it's working, no
estimated time until completion, etc. I had no idea about whether it
would be finished in 9 minutes or the actual 9 hours that it took. This
is crazy-making.

Because of the very long time to scan my system, I thought that I'd like
to use it only as a second-line antivirus; it's probably a good one for
that. Except that it's always taking some memory, and we've already got
a really bad case of programmers and product managers who each think
that their wares are so important that they must be instantly available:
all system tray all the time, with no way to stop this hogish behavior.
I believe that people are, or will be, working on all these issues;
it'll be interesting to watch this project develop.

Now, the question:
Can anyone suggest a way to run this program exclusively as an on-demand
application without any installation? This is the only twist that could
make this antivirus practical for me.

Thanks.

Richard