Installs fine, doesn't lauch correctly

[spa]

I'm having this same issue, the loading window comes up
and gets to the point where it says "Loading Microsoft
Antispyware...". Then the window disapears and nothing
happens.

Each day when I wake my system up, there's a message
saying that after a scan it found one potential virus, so
the background process/scan is working, but when I click
on "more info" the main application doesn't show up again.

 

[Robear Dyer, MS MVP]

Most likely you're seeing this behaviour due to malware already present on
your system, Spa.

Help with Hijackware
http://aumha.org/a/parasite.htm
http://aumha.org/a/quickfix.htm
http://mvps.org/winhelp2002/unwanted.htm
http://inetexplorer.mvps.org/Darnit.htm
http://www.mvps.org/sramesh2k/Malware_Defence.htm