I have problems running the agent on Windows 2008 x64 editions

The agent has been tested on 64bit environments and it works. Problems could be arising for two main reasons:

1. Running exec agents, because binary utilities provided by the Pandora FMS agent are compiled for 32bits and sometimes have trouble running under a 64bit service. Check if under a shell command all utilities your may be using (gawk, cut, grep) are working fine. If not, try to replace the failed ones with another executable or use another way to get around the problem.
2. Problems in logevent parsing/monitoring. This is due to a missing DLL (PDH.dll), this library must be in C:\windows\system32, if it’s not present, try to copy it from another 64-Bit Machine. This is not uncommon, looking at Google hits search, we’ve seen that it’s often removed by some uninstallers.