ADS Error com.sap.SOA.wsr.030104

Hi,

I have problem with Adobe Document Services on Netweaver 7.3

ADSSAP component is installed, but when I try to open URL:

http://<SERVER_URL>/AdobeDocumentServices/Config as stated in the guide document, the following error appeared:

405   Method Not Allowed
		SAP NetWeaver Application Server 7.20 / AS Java 7.30

  Error: com.sap.engine.services.webservices.espbase.server.additions.wsa.WSAddressingException: com.sap.SOA.wsr.030104 - Expected request method POST. Found GET.

  Troubleshooting Guide https://sdn.sap.com/irj/sdn/wiki?path=/display/JSTSG/Home

No details available.

I have searched through SDN and Google and I haven't found any answer.

SP0 and SP5 have exactly the same behaviour, and restarting the component does not help.

Has anybody solved the same problem?

Thank you