I replaced \winnt\systems32\url.dll...it didn't work and now the machine won't even boot up, saying it has a possibly corrupt url.dll file. How can I put back the original if it won't even boot up? I tried the install CD (repairing Windows NT option) but it never gave the option of replacing that file with the original. Thanks.

win nt rescue procedure: requires: 1. 3 boot floppies created during install 2. emergency repair disk (ERD)** 3. win nt wkstn cd **hopefully u created this on the machine that has died. it can be created from another NT machine, but there is no garuntee it will work how to: 1. boot from disk 1 (set up boot disk) 2. insert disk 2 3. menu appears, choose 3rd option by pressing R for repair 4. press enter at next screen 5. press enter to detect mass storage devices 6. insert disk 3 when prompted 7. enter if u have no more mass storage devices to detect 8. enter if you have an ERD 9. insert ERD, press enter 10. enter to continue 11. press A to repair all files (a yellow progress bar will appear) 12. remove all disks when told and reboot this should help u out somewhat, i hope good luck