I've had that same EXACT problem.
HERE IS THE SOLUTION!! I found it at forums.net-integration from a
user named Rene:
Hello @all,
This could happen if you enable all of the Program automation settings
(to auto-close the program after scan on program start will be removed
in the next bugfix).
And due to a bug not reproducable but happening, during some installs
random instead of the default settings are applied. In that case, all
Automation options could be enabled, forcing the program to scan and
exit automatically afterwards. As this will not even allow you to
enter the program, you need to reset the settings. There are two ways
to do this:
1. You can delete the configuration file (which is named
Configuration.ini). Where it is located depends on your Windows
version...
(The application data folder is hidden. Run Windows Explorer, in the
menu bar select "Tools", "Folder Options", switch to the second tab,
and there select "show hidden files and folders". Hit OK. Now the
application data folder is visible).
For Windows 95/98, the file is located in C:\Windows\Application
Data\Spybot - Search & Destroy\.
For Windows ME, the file is located in C:\Windows\All
Users\Application Data\Spybot - Search & Destroy\.
For Windows NT/2000/XP, you will find it in C:\Documents and
Settings\All Users\Application Data\Spybot - Search & Destroy\.
Either delete that file, or edit it (for example in notepad), and set
all the Automation values in it to zero.
2. You can download a small tool that will do those changes for you:
http://spybot.eon.net.au/files/resetsettings.zip
This information is also available in our FAQ:
http://www.spybot.info/index.php?page=faq&detail=23
If that does not solve your problem, your system is maybe infected by
CoolWWWSearch.SmartKiller (v1 and v2). It is a new, real ugly variant
of CoolWWWSearch. When running, it will close every browser window you
use to visit a large list of anti-spyware-sites, and even will close
Spybot-S&D and some other anti-spyware applications as well.So if your
copy of Spybot-S&D (or the anti-spyware application of your choice)
closes a few seconds after starting, or your browser closes whenever
you try to visit an anti-spyware site, check our CWS.SmartKiller
removal utility:
http://www.safer-networking.org/files/delcwssk.zip
The mentioned zip files are backup files. If something does not work
after deleting by Spybot S&D you can restore these files by the
integrated restore function. Some other programs recognize these as
threats - but don´t worry about that...