I don't know anything about shutting down, but it looks to me that you are clobbering part of your registry in the first part of your script. I've never used TieRegistry, so take this with skepticisim, but it looks like
$ms->{'Tcpip/'} = { 'Parameters/'=> ... };
will erase everything that's inside of Tcpip. Try:
$ms->{'Tcpip/'}{'Parameters/'}{'SearchList'} = ['test','REG_SZ'];
and
$ms->{'Tcpip/'}{'Parameters/'}{'DhcpDomain'} = ['','REG_SZ'];

You have
my $ms = $Registry->{'LMachine/SYSTEM/ControlSet001/Services/'};
twice. The second one is not needed. In fact, it should give you a warning.

Also, REG_SZ appears to the be default, so
$ms->{'Tcpip/'}{'Parameters/'}{'SearchList'} = 'test';
is sufficient.

So, the final script is:

use Win32::TieRegistry;

my $ms = $Registry->{'LMachine/SYSTEM/ControlSet001/Services/'};
$ms->{'Tcpip/'}{'Parameters/'}{'SearchList'} = 'test;
$ms->{'Tcpip/'}{'Parameters/'}{'DhcpDomain'} = '';

...shutdown code...

[download]

or we could eliminate some redundancy:

use Win32::TieRegistry;

my $ms = $Registry->{'LMachine/SYSTEM/ControlSet001/Services/'};
my $tcpip_param = $ms->{'Tcpip/Parameters/'};
$tcpip_param->{'SearchList'} = 'test;
$tcpip_param->{'DhcpDomain'} = '';

...shutdown code...

[download]

In reply to Re: After changing registry values need to reboot systems by ikegami
in thread After changing registry values need to reboot systems by mallen

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.