An error message shows repeatedly.

Hello,
I’m facing a great problem now. Whatever I’m doing in my pc, an error message shows repeatedly. In addition, I don’t have any HP software installed in it (see the image below). I just installed Windows XP, but this is a work computer and has essential software that cannot be reinstalled.
Error:
Situation code:10848640
The following lines were retrieved from the installation error logs.
Now Launching=x:hpzmsio1.exe-m dot4msi-1xxx-f x:DIVns??.DAT Error message received:The installer has encountered an unexpected error installing this package. This may indicate X:HPZBDI32.msi failed with return code 1603 MSIInstall()failed with 1603 Exit code=1603
So, how come I'm having this kind of error?
I need some advice for this.
Thanks a lot.
