Windows Explorer Shell Extensions

I have a real mystery on my hands. It seems that every time I install
a program that changes Windows Explorer, the shell extension
disappears after rebooting. When I installed AVG, I could right click
in windows explorer and have the option to scan a file. It soon
disappeared. I then installed Spyware Terminator. It also had a
shell extension to right click in windows explorer to scan a file. It
too has disappeared. Anyone have any ideas what's happening and how I
can fix it?

TIA for your help!!

Donna

On Sep 25, 3:23 pm, jst2swt4 <jst2s...@gmail.com> wrote:
> I have a real mystery on my hands. It seems that every time I install
> a program that changes Windows Explorer, the shell extension
> disappears after rebooting. When I installed AVG, I could right click
> in windows explorer and have the option to scan a file. It soon
> disappeared. I then installed Spyware Terminator. It also had a
> shell extension to right click in windows explorer to scan a file. It
> too has disappeared. Anyone have any ideas what's happening and how I
> can fix it?
>
> TIA for your help!!
>
> Donna

I'm sorry, I forgot to mention that I'm using vista home premium 32bit

On Sep 25, 3:39 pm, jst2swt4 <jst2s...@gmail.com> wrote:
> On Sep 25, 3:23 pm, jst2swt4 <jst2s...@gmail.com> wrote:
>
> > I have a real mystery on my hands. It seems that every time I install
> > a program that changes Windows Explorer, the shell extension
> > disappears after rebooting. When I installed AVG, I could right click
> > in windows explorer and have the option to scan a file. It soon
> > disappeared. I then installed Spyware Terminator. It also had a
> > shell extension to right click in windows explorer to scan a file. It
> > too has disappeared. Anyone have any ideas what's happening and how I
> > can fix it?
>
> > TIA for your help!!
>
> > Donna
>
> I'm sorry, I forgot to mention that I'm using vista home premium 32bit

I guess I have everyone stumped. I ran the "shell extension view"
program and it shows that both Avast and Spyware Terminator are
enabled. I reinstalled Terminator and the shell extension is back on
the context menu. I'm sure as soon as I turn off my laptop, it will
disappear. I would really appreciate any help!!

Thanks so much!!!