What are are your anti-virus and anti-spyware arrangements? What
firewall are you using?

Did you run an antivirus or antispyware scan recently on this computer? The
behavior you describe is usually what happens when an antivirus or
antispyware program identifies a file as malware, deletes the file, but doesn't
clean up the mechanism that launches the malware at startup.

Here's a program from Microsoft that will help you stop the error messages.

AutoRuns for Windows v9.13
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx

Once you've downloaded and extracted the files, run autoruns.exe.
Look on the Everything tab for an entry that lists obcpmhbs.dll in the Image
path
column.
Right click on that entry and select Search Online from the menu.
Odds are that you'll come up with an empty search. This pretty much confirms
that it was some type of malware that your scan deleted.
Uncheck the item.
Do the same for ssvcctda.dll.
Restart your computer. If you no longer see the error message, you can go back
and delete the entry in Autoruns.

Just to be on the safe side, you might consider taking steps to make sure the
system is malware free. Here's a site with general instructions on cleaning a
computer.

Courtesy of Malke Routh, MS-MVP
http://www.elephantboycomputers.com/page2.html#Viruses_Malware

Good luck

Nepatsfan