This is a default config, my changes are only here:
<Directory D:/progs/xampp/xampp/htdocs/incoming> 
	Options ExecCGI 
	AllowOverride All 
	Order allow,deny 
	Allow from all 
	Script PUT D:/progs/xampp/xampp/htdocs/incoming/put.php
</Directory> 

The corresponding error msg for my request is:

[Wed Jul 12 08:33:48 2006] [error] [client 127.0.0.1] Invalid URI in request PUT /incoming/ HTTP/1.1