Hi, i install nsclient++ on windows 2012 R2 (version 0.4.1.73). The windws language is spanish.
I need get current asp sessions from Performance Monitor, in english i use:

alias_check_asp = CheckCounter "Counter:ASP=\Active Server Pages\Sessions Current" MaxWarn=390 MaxCrit=470
and is working fine.

in spanish i try:
alias_check_asp= CheckCounter "Counter:ASP=\Páginas Active Server\N° actual de sesiones" MaxWarn=390 MaxCrit=470
using scape
alias_check_asp= CheckCounter "Counter:ASP=\P\áginas Active Server\N\° actual de sesiones" MaxWarn=390 MaxCrit=470

On nagios (version 3.3.1):

define service{
use generic-service
host_name web01.xxxxxxxxx.com
service_description ASP Sessions
check_command check_nrpe!alias_check_asp
}
i have problem with á and °
could you help me?