Work with word and php

[EuresMan]

Hello, this is my first post
i need to create a word document as result of a query, but when a try to create an istance of word application with COM, i see the status bar stopping and the browser's window blocking.
The application doesn't starts.
I tried the same code with an excel and access and powerpoint document and all works fine!!!
But with WinWords the same code doesn't works!!!
The code, a simple test code, is the following :

$word = new COM("word.application") or
die("Impossible to instantiate WordApp");
print "Word is running, version {$word->Version}\n</br>";

I have a WinXp and Office XP, which could be the problem?
Word works in my machine.
Php.ini was edited to works with COM( In fact i work with access, excel,...)

I don't now 🙁

Thanks