NSClient++ Help (#1) - checkeventlog general inquiry (#759) - Message List

nsclient 0.3.8.75 - Windows 2008

My check:

alias_event_Bwar=CheckEventLog file='C:\Windows\System32\winevt\Logs\JScheduler.evtx' debug=true MaxWarn=1 MaxCrit=1 "filter=severity = 'warning' AND generated gt -15m" truncate=800 unique descriptions "syntax=%message% (%count%)"

Note: I get the same result if I enclose my path to the .evtx file in quotes, as well as if I leave it by name Jscheduler.

The result (also note, there is nothing but warning messages in the JScheduler event log, reporting every 3-5 minutes):

d NSClient++.cpp(1106) Injecting: alias_event_Bwar:
d NSClient++.cpp(1106) Injecting: CheckEventLog: file='C:\Windows\System32\winevt\Logs\JScheduler.evtx', debug=true, MaxWarn=1, MaxCrit=1, filter=severity = 'warning' AND generated gt -15m, truncate=800, unique, descriptions, syntax=%message% (%count%)
d \CheckEventLog.cpp(671) Filter:
d \CheckEventLog.cpp(693) Using: where severity = 'warning' AND generated gt -15m
d \CheckEventLog.cpp(344) Parsing: severity = 'warning' AND generated gt -15m
d \CheckEventLog.cpp(352) Parsing succeeded: {tbd}op:and({tbd}op:=({tbd}:severit
y, {tbd}'warning'), {tbd}op:>({tbd}:generated, {tbd}fun:neg({tbd}fun:convert({tbd} { {tbd}#15, {tbd}'m',  } ))))
d \CheckEventLog.cpp(359) Type resolution succeeded: {bool}op:and({bool}op:=({ui:1}:severity, {ui:1}fun:auto_convert({string}'warning')), {bool}op:>({date}:generated, {date}fun:neg({date}fun:convert({tbd} { {tbd}#15, {tbd}'m',  } ))))
d \CheckEventLog.cpp(366) Binding succeeded: {bool}op:and({bool}op:=({ui:1}:severity, {ui:1}fun:bound:auto_convert({string}'warning')), {bool}op:>({date}:generated, {date}fun:bound:neg({date}fun:bound:convert({tbd} { {tbd}#15, {tbd}'m',  } ))))
d \CheckEventLog.cpp(373) Static evaluation succeeded: {bool}op:and({bool}op:=({ui:1}:severity, {ui:1}#2), {bool}op:>({date}:generated, {date}#1300996606))
d \CheckEventLog.cpp(700) Boot time: 4080
d \CheckEventLog.cpp(484) Attempting to match: Application with 'C:\Windows\System32\winevt\Logs\JScheduler.evtx'
d \CheckEventLog.cpp(484) Attempting to match: Hardware Events with 'C:\Windows\System32\winevt\Logs\JScheduler.evtx'
d \CheckEventLog.cpp(484) Attempting to match: Security with 'C:\Windows\System32\winevt\Logs\JScheduler.evtx'
d \CheckEventLog.cpp(484) Attempting to match: System with 'C:\Windows\System32\winevt\Logs\JScheduler.evtx'
d \CheckEventLog.cpp(793) Evaluation time: 4910210
d NSClient++.cpp(1142) Injected Result: OK 'Eventlog check ok'
d NSClient++.cpp(1143) Injected Performance Result: ''eventlog'=0;1;1; '
d NSClient++.cpp(1142) Injected Result: OK 'Eventlog check ok'
d NSClient++.cpp(1143) Injected Performance Result: ''eventlog'=0;1;1; '

It's as if the check can only read Application, Security, Hardware Events or System logs. Is that the case? If so, is there any way to make it read non-standard Windows event logs?

Thanks in advance!