Originally Posted By: duo
Is a null return an actual error from this code? you could also do something like
 Code:
if $returnvalue=''
;report error
endif


I think you've got it. You might as well code for all scenarios:
 Code:
If @ERROR OR $uptime=''
   "ERROR: Cannot retrieve uptime or uptime is null. Error code is ["+@ERROR+"] "+@SERROR+@CRLF
   If Not @ERROR $=Execute("Exit 4203") EndIf
EndIf