Java EE (Java Enterprise Edition) General Discussion

I'm not sure if this is the correct place for this question..

I am attempting to open a word document, which resides in a webdav folder from web app. I need IE to start word and open the original document from the webdav folder and allow the user to make changes to the document and save it back to the webserver.
Wep app this http://www.javatalks.ru/go.php?uri=http://svn.apache.org/repos/asf/tomcat/tc6.0.x/trunk/java/org/apache/catalina/servlets/WebdavServlet.java

I've got it to open the document but it seemed to have copied the document to my temporary internet files folder and opened the copy from there. The original file name is "test.doc" but the opened temprary file is "test[1].doc" and so on. How can I get it to open the original document for editing?

Any help would be appreciated..