PEAR::SOAP on Windows not working

Hi, I have been searching for directions of how to get PEAR::SOAP to work on my Windows Machine, but without success. I have downloaded the package and unzipped it to a subfolder to my main web folder. This is my error message: ---------------------- Warning: main(HTTP/Request.php): failed to open stream: No such file or directory in C:\Documents and Settings\Peter Lauri\My Documents\DWS Asia\webserver\xl\SOAP\WSDL.php on line 27 Fatal error: main(): Failed opening required 'HTTP/Request.php' (include_path='.;C:\php4\PEAR\pear') in C:\Documents and Settings\Peter Lauri\My Documents\DWS Asia\webserver\xl\SOAP\WSDL.php on line 27 ---------------------- However, when I make a search for the file Request.php in my file system, I can not find it. Have I missed any step in the installation procedure? Maybe some other package that I need to install before? Best regards, Peter Lauri