I have exactly same problem too, and I'm worried about it.
It makes me think if my desktop computer is still secured against viruses and spy software ?
I did run Microsoft's msert software to check if my computer is infected by the virus but it wasn't.
I'm glad that I'm not only one with this.
I hope that I get soon a solution and an explanation for this Error message.
I got an email-message from F-secure Technical Support Engineer, not sure if this solution is official, but it worked for me:
Extract it and run the installer in the folder. Problem solved.
Still I'm not sure if this is correct way to fix.
Having same problem since upgrade. I am having considerable hard drive access it takes approx 30 minute for PC to stabilise. The FSSm32.exe is forcing massive amounts of read writes to the disk. In viewing the tasks its shows that the fsecure gateway has continually failed to initialise. On shutdown there is always a fshoster message showing that the task has not completed shutdown.
Additionally when fsecure startsup there is no antivirus protection and a windows message states this. It is not until about five minutes into boot time that the fsecure icon appears in the bottom right corner.
All of this leads me to believe that fsecure is not functioning correctly since an update. Its now getting to the point where I will have to remove and get another proection method as this looks like it has been compromised in some way. I have sent fsdiag to F secure. But I think this may be something fundamental with the new build or its install.
Running XP SP3.
Please note that the fix was released through automatic update channel as F-Secure Scanner Manager Update 2013-04-26_01.