Hello, thanks for your answer.
Yes, I really need OCS webservices, and it's doesn't work, it seems that nobody be able to install it ...
I have begun a new install, from sratch, and before to install OCS, I have install the Apache2::SOAP.
When I launch the OCS 2.2.1 setup:
Checking for Apache2::SOAP PERL module...
*** Warning: PERL module Apache2::SOAP is not installed !
This module is only required by OCS Inventory NG SOAP Web Service.
Do you wish to continue ([y]/n] ?n
Installation aborted !
cpan> install Apache2::SOAP
Database was generated on Tue, 02 Aug 2016 12:29:02 GMT
Apache2::SOAP is up to date (0.73).
As you can see the Apache2::SOAP module is already installed, and the OCS setup tell me it's not the case ...
Please help us !