I have the same issue.
Debian 8 Jessie, ocs server 2.3 on Debian, and ocs agent 2.3 on windows 10.
I have installed this: libapache2-mod-perl2 and libapache2-mod-php5
and it's not work...
"
[Wed Feb 08 16:06:36.449556 2017] [mpm_prefork:notice] [pid 10829] AH00163: Apache/2.4.10 (Debian) mod_perl/2.0.9dev Perl/v5.20.2 configured -- resuming normal operations
"
My agent:
"
SetACL allowing Users / Power users read/write permissions on <C:\ProgramData\OCS Inventory NG\Agent>...Result: error
SetACL propagating inherited permissions on <C:\ProgramData\OCS Inventory NG\Agent\Download>...Result: error
[...]
SUCCESS: OCS Inventory NG Agent 2.3.0.0 successfully installed
"