I don't know That I could be of help with this, myself. But surely some will. In any case, some more info will be helpful.
Manufacture and model of the computer.
Do I understand correctly that the machine is 10 years old.
Are you using XP Home or pro? SP1 or SP?
How much RAM is installed?
How long have you been using XP on the 10 year old machine? Has XP ever worked well on this machine?
What Internet browser are you using?
Have you run and anti-virus/spyware scans?
My 500mhz 10 year computer with windows XP has developed the above error message. the message ends with "in any activation context". It then on clicking next says "The filename, directory name,or volume label syntax is incorect". I open on my home page normally and can login here but whenever I try another web site I get these messages. I have reinstalled Windows XP and Office 2003 with no help. I have cleaned my directory and removed unnecessary files. Most often when I use a program which needs to go to the Internet it seems to malfunction, e.g. McAfee Secuerity Center screen is blank BUT the program seems to run periodically as scheduled.It also asks for permission when a program asks for acess.Typing Mcafee.com in the address bar gives the same error messages.
Others seem to start loading O.K. but before they complete I get a runtime error
But when I use one site a broker's trading station it downloads and works fine. Can anyone help with this malfunction? I would be very grateful. Thank you.