Windows NT unattended install gotcha

by Wayne Maples [Published on 20 April 2004 / Last Updated on 20 April 2004]

tcpcfg.dll gotcha!

If you specify a zero as the second or third octet of the ip address (as in 168.77.0.25), in an unattended install, the following error message will be generated:

The IPAddress key has an invalid IP address. Please correct the problem after the property sheet is displayed.

Its not a fatal error. Just press OK and continue. To avoid the error message and keep unattended installs, unattended, copy i368\TCPCFG.DL_ on the distribution server with the version from any service pack. Only the original version has the error.

unattend.txt password gotcha!

During an unattended installation of Windows NT 4.0 is performed, the installation process copies the parameter file, unattend.txt, to either %windir%\system32\$winnt$.inf for a normal unattended installation, or %windir%\system32\$nt4pre$.inf if Sysprep was used. A security risk arises because the installation doesn't delete the installation file when the installation completes. By default, any user who can logon at the console can read this file. If sensitive information such as account passwords were provided in the installation parameters file, the sensitive information can be compromised. This is primarily a problem for Windows NT workstation installs since normal user accounts can not logon at the console of servers.

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