constantcomputertrouble

I am running Windows XP Home. When I log on to my computer, I get the
following error code:

Cannot find import; DLL may be missing, corrupt, or wrong version
File "rtl70.bpl", error 126

I tried to load my antivirus/spyware program, and I got the same error.
Even when I signed into this forum, I got the error.

I have tried to use my System Restore several times, now, but to no avail.

I have also tried to use the Recovery Console program, but it isn't
accepting my Administrator password (of which there is and has always been
only one).

I have run the installation CD, looking for the "repair missing files"
section, but I can't find it anywhere.

I can't run any antivirus or antispyware programs, because I keep getting
this error. I don't know how many other programs this error will appear on,
as I haven't tried to do anything more than seek help with this.