Sorry, it is 32 bits, it is apparently not R2, it has Service Pack 2 though!
From description:
"Windows SCHED 6.0.6002 Windows Server 2008 Build 6002 Service Pack 2 Intel IA-32"
Yes it is the 1.0.4 agent, 32-bits.
The server has also been restarted now, just to ensure that it is nothing trivial like that, but it displays the same errors, so I changed the user who runs the nxagent to the administrator, and now it works
Not optimal, but something is not as it should with the local system account
I think I will let some windows admin look at it.
Thanks for your help!
Best regards,
Dan