How to Fix Newdev.dll

1. Open the Windows 'Command Prompt' utility. Do this by typing 'cmd' into the Windows search box on Windows Vista and Windows 7. Select 'Run' from the Start menu on XP, enter 'cmd' into the 'Run' window and click 'OK.'
2. Enter 'sfc /scannow' when the Command Prompt window opens. Press 'Enter' to execute the command. You may need to enter an administrator password.
3. Restart the computer after the errors have been detected and system files have been replaced.
4. Keep your Windows Setup disc on hand during the process as the System File Checker utility may need to copy certain files off the disc back to your hard drive when replacing the corrupted DLL file.