Hi I have written following code to read the data from .ism file. Similar way I will write a code to write data in .ism file but my code is failing with an error saying "Can't call method "OpenProject" on an undefined value at C:\Test\Update_ism.pl line 15." Following is the code. Can you please suggest how do I get rid of this. 
use Win32::Guidgen;
use Win32::OLE;

my $guid = Win32::Guidgen::generate(); #Generate GUID for Product code
+.

# instantiate the Developer Automation interface
$dev = Win32::OLE->new("ISWiAutomation.ISWiProject");

# open a project file.
$dev->OpenProject("C:\\InstallShield 2010 Projects\\Test.ism") or die 
+"Can not open project file:$!";

print "ProductName: " , $dev->ProductName, "\n",
"ProductVersion: ", $dev->ProductVersion, "\n";

# close the project
$dev->CloseProject( );

[download]

In reply to Re^3: Perl script to change product code and product version in installshiled project (.ism) file? by premal
in thread Perl script to change product code and product version in installshiled project (.ism) file? by premal

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.