HI guys!
I encountered the same promlem {error 0x81000301} and neither of the tips above helped me solving the problem…..after questioning Microsoft Database, I find out that the problem is with Winsock…..instead of installing the OS all over again I found a tools which fix the problem on my OS {WinXP} and it is called WinsockXPFix.exe, I searched it on the Internet (Google is great) download it to an isolate zone on my Hard drive, check virus clean and run it….SOLVED MY PROBLEM!!!
Please let me know if it solves your’s