I Failed even if i use the following code: 

use Win32::Registry;
my $Register = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0
+34106B5-54B7-467F-B477-5B7DBB492624}';
my $hkey;
$HKEY_LOCAL_MACHINE->Open($Register,$hkey)|| die print "($!) ($?) ($^E
+)\n";

$hkey->Close();

[download]

If i remove the last entrance key {034106B5-54B7-467F-B477-5B7DBB492624} and run it like the following is working good:

use Win32::Registry;
my $Register = 'SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall';
my $hkey;
$HKEY_LOCAL_MACHINE->Open($Register,$hkey)|| die print "($!) ($?) ($^E
+)\n";

$hkey->Close();

[download]

My question is why? Why {034106B5-54B7-467F-B477-5B7DBB492624} caused to read problem?

I just need to check if some product is installed

In reply to Re^2: Failed to check if registry key is exist by roteme
in thread Failed to check if registry key is exist by roteme

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.