Windows Batch Scripts executed by the ExternalParametersProvider seem to have issues when they execute other applications. In Powershell Scripts only xcopy.exe doesn't work.
We are using Windows 2008 R2 as Server and Agent.
NetXMS Server and Agent is on 1.2.4

in cmd.exe scripts it seems like it stops executing after the first exe-application was started. this only happens when run by NetXMS Agent, when run manually in cmd.exe it always runs through

@echo off
echo ---- MARK >> d:\log_files\netxms_rpc_debug_cmd.log 2>&1
c:\WINDOWS\System32\ping.exe localhost -n 1 >> d:\log_files\netxms_rpc_debug_cmd.log 2>&1
c:\WINDOWS\System32\findstr.exe csax d:\csaxtext?.txt >> d:\log_files\netxms_rpc_debug_cmd.log 2>&1
c:\WINDOWS\System32\robocopy.exe d:\ c:\ csaxtext3.txt /NJH /NP >> d:\log_files\netxms_rpc_debug_cmd.log 2>&1
c:\WINDOWS\System32\xcopy.exe d:\csaxtext3.txt c:\ /Y >> d:\log_files\netxms_rpc_debug_cmd.log 2>&1
echo DEBUG_CMD=SOMEVALUE >> d:\log_files\netxms_rpc_debug_cmd.log 2>&1

when you change order of commands, the first one is executed with proper output, the rest is not.
interestingly, xcopy does not work at all, no output, no copy but still stops execution
the output of the above script is:

---- MARK 

Pinging localhost [127.0.0.1] with 32 bytes of data:
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Ping statistics for 127.0.0.1:
    Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

in powershell all but xcopy work. xcopy won't stop the execution of the hole script but it doesn't do anything and does not show any output. If run manually, it works as expected.

"---- MARK" | ac d:\log_files\netxms_rpc_debug_ps.log
c:\WINDOWS\System32\ping.exe localhost -n 1 | ac d:\log_files\netxms_rpc_debug_ps.log
c:\WINDOWS\System32\xcopy.exe d:\csaxtext3.txt c:\ /Y | ac d:\log_files\netxms_rpc_debug_ps.log
c:\WINDOWS\System32\findstr.exe csax d:\csaxtext?.txt | ac d:\log_files\netxms_rpc_debug_ps.log
c:\WINDOWS\System32\robocopy.exe d:\ c:\ csaxtext3.txt /NJH /NP | ac d:\log_files\netxms_rpc_debug_ps.log
"DEBUG_PS=SOMEVALUE"| ac d:\log_files\netxms_rpc_debug_ps.log

output

---- MARK

Pinging app01.intra.arcplace.ch [127.0.0.1] with 32 bytes of data:
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Ping statistics for 127.0.0.1:
    Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms
d:\csaxtext3.txt:csax-test

                      1 d:\

------------------------------------------------------------------------------

              Total    Copied  Skipped  Mismatch    FAILED    Extras
    Dirs :        1        0        1        0        0        0
  Files :        1        0        1        0        0        0
  Bytes :        11        0        11        0        0        0
  Times :  0:00:00  0:00:00                      0:00:00  0:00:00

  Ended : Wed Nov 14 15:58:30 2012
DEBUG_PS=SOMEVALUE

Agent Config:

LogFile = D:\log_files\netxms_agent.log
DebugLevel = 9
FileStore = C:\NetXMS\var
SubAgent = ecs.nsm
SubAgent = ping.nsm
SubAgent = logwatch.nsm
SubAgent = portcheck.nsm
SubAgent = winperf.nsm
SubAgent = wmi.nsm
ExternalParametersProvider=powershell.exe d:\cmd_files\netxms_rpc_debug.ps1:5
ExternalParametersProvider=d:\cmd_files\netxms_rpc_debug.cmd:5

In the Agent Debug(level 9) logs i was unable to find detailed information about the execution of ExternalParamtersProvider only the DCIs requesting their parameters.
i tested this on two Windows 2008 R2 systems with same agent version. one is part of a domain, the other is not.

i appreciate any ideas.
in the end, i need the xcopy in powershell to generate a list of remote files older than a specific date (xcopy /L /D:DATE)