Failed Calling CreateFile;GetLastError = 32

[lwfoon]

i get such error message during installation of Version 4.00
Why it happen?
Besides, I have a scsi DVD rom.
how to uninstall it?
it keep showing even i uninstall it in device manager.
i follow the steps in the forum like move the driver can edit registry but it keep showing out.
I'm tired to test it.

[AnalCobra]

Disable your antivirus and firewall during the installation and get latest version of DT (its 4.03). Dont use that old version, there are many bugs fixed.