|"Tried to copy the file url.dll from there, but it could not be expanded"|
There's at least two ways of doing that.
The compressed (unexpanded) files on the Windows CD have an underline character at the end of the file extension instead of a letter or number.
The Copy command in the Recovery Console in XP (and 2000, and in server 2003) automatically uncompresses (expands) a compressed (unexpanded) file from the Windows CD, such that it's the full size at the destination, but it doesn't rename it's extension at the destination, so you must specify that.
E.g. if your CD drive letter you have the Windows CD in is H, use
copy h:\i386\url.dl_ C:\Windows\System32\url.dll
(all on one line, a space between copy and h:\..., and between .dl_ and C:\Windows.....)
You can also use the Expand command - it automatically expands (uncompresses) the file AND renames it so it's the proper size and proper extension at the destination.
E.g. if your CD drive letter you have the Windows CD in is is H, use
expand h:\i386\url.dl_ C:\Windows\System32
or better still
expand h:\i386\url.dl_ C:\Windows\System32\
(all on one line, a space between expand and h:\..., and between .dl_ and C:\Windows.....)
Apparently, you are resticted in the Recovery Console as to what drives, and what folders on the Windows installation you are logged onto, you can access, and where you can copy files from/to, unless you change Group Policy settings in Windows before you enter the Recovery Console, and then use the SET command in the Recovery Console to change default settings (SET is disabled in the Recovery Console otherwise, other than it shows you the present settings).
e.g. You can access any CD or DVD drive letter or folders or subfolders on it; the root folder, the Cmdcons folder, and the %system% (Windows) folder and all it's subfolders of the Windows installation you are logged onto, but not other folders on the Windows installation you are logged onto.
So - you can copy (or expand) files from a CD in an optical drive to the root folder, the Cmdcons folder, and to the system (Windows) folder or any of it's subfolders, of the Windows installation you are logged onto, but you can't copy files to a floppy in a floppy drive or to OTHER THAN than the the root folder, the Cmdcons folder, and the system (Windows) folder and any of it's subfolders, of the Windows installation you are logged onto.
See this for more info:
The auto update should not have corrupted url.dll.
Something else may be wrong.
See response 2 in this - try cleaning the contacts on the ram modules, and making sure the modules are properly seated:
For a laptop, you must remove both its main battery and AC adapter before you do that.
If you do a ram test, do that AFTER having tried cleaning the contacts and making sure the ram is seated properly - otherwise any errors found may be FALSE.
If the ram is incompatible with the chipset, it will likely FAIL a ram test - that is NOT a true indication of the ram being faulty - there is probably nothing wrong with it, and it will pass the test if installed in a mboard it is compatible with.
If a ram test DOES find errors, if you have more than one module installed, try the test with one module at a time - sometimes they won't work properly when more than one is installed, but it will pass when by itself.
If you want to try a memory diagnostic utility that takes a lot less time to run a full pass than memtest86 does, this one is pretty good - Microsoft's
Windows Memory Diagnostic:
It can be toggled (press T) to do a standard or a more comprehensive set of tests - use the default 6 test one first - if it passes one pass of that, use the latter one. A few of the tests in the latter set are intentionally slower.
If you don't have a floppy drive, see the Quick Start Information at that Microsoft link for how to make a bootable CD of the Windows Memory Diagnostic (you need Windiag.iso - you don't necessarily need to use the program they mention to add it to the CD).
Check your hard drive with the manufacturer's diagnostics.
See the latter part of response 1 in this:
(thanks to Dan Penny for this link:)
Hard Drive Diagnostics Tools and Utilities
If you don't have a floppy drive, you can get a CD image diagnostic utility from most hard drive manufacturer's web sites, but obviously you would need to make a burned CD, preferably a CD-R for best compatibilty, on another computer if you need to.
If the hard drive itself tests okay, any data problems found can be fixed, one way or another.