Here is... problem is in the bold line:
<?php
#*********************************************************
This example, slightly modified from the Zend site,
will open an instance of word with a new
document with the name "Useless test.doc" and the line:
"This is a test2..." typed inside.
#*********************************************************
#Instantiate the Word component.
$word = new COM("word.application") or die("Unable to instantiate Word");
#Get and print its version
print "Loaded Word, version {$word->Version}<BR>";
#Another way to get the version using com_get
//$testversion = com_get($word->application,version);
print "Version using Com_get(): $testversion <BR>";
#Make it visible in a window
$word->Visible = 1;
#Open a new document
$word->Documents->Add();
#Write something
$word->Selection->TypeText("This is a test...");#Now save the document
//$word->Documents[1]->SaveAs("Useless test.doc");
#Comment next line if you want to see the word document,
#then close word manually
//$word->Quit();
#Comment if you want to see the word document, then close
