if you check out the numbers at
www.spywarewarrior.com -
they have comparisons of most of the major spyware
programs. No spyware scanner gets everything. But Giant -
(now Microsoft Anti-Spyware) has the highest rating of
any of their compared programs. Your case is likely
unique. If the numbers are correct - this means that you
had some spyware that was not on this particular software,
but for the majority of the users out there, this is the
best single program. But I myself use multiple programs.
I don't rely on any 1 piece of software to fix spyware. I
would suggest using Microsoft-Antispyware in combination
with Adaware.