From OpenNMS

Detecting with Capsd

First configure $OPENNMS_HOME/etc/capsd-configuration.xml to detect the services on your Windows machines. The setup use the integrated Win32ServicePlugin:

 
  <!-- VMware Tools Windows und Unix -->
  <protocol-plugin protocol="MS-VMware-Physical-Disk-Helper"
    class-name="org.opennms.netmgt.capsd.plugins.Win32ServicePlugin"
    scan="on" user-defined="false">
      <property key="timeout" value="3000" />
      <property key="retry" value="1" />
      <property key="service-name" value="VMware Physical Disk Helper Service" />
  </protocol-plugin>
  <protocol-plugin protocol="MS-VMware-Tools"
    class-name="org.opennms.netmgt.capsd.plugins.Win32ServicePlugin"
    scan="on" user-defined="false">
      <property key="timeout" value="3000" />
      <property key="retry" value="1" />
      <property key="service-name" value="VMware Tools-Dienst" />
  </protocol-plugin>
  <protocol-plugin protocol="Proc-VMware-guestd"
    class-name="org.opennms.netmgt.capsd.plugins.HostResourceSwRunPlugin"
    scan="on" user-defined="false">
      <property key="timeout" value="2000" />
      <property key="retry" value="1" />
      <property key="service-name" value="vmware-guestd" />
  </protocol-plugin>
  <protocol-plugin protocol="Proc-VMware-vmmemctl"
    class-name="org.opennms.netmgt.capsd.plugins.HostResourceSwRunPlugin"
    scan="on" user-defined="false">
      <property key="timeout" value="2000" />
      <property key="retry" value="1" />
      <property key="service-name" value="vmmemctl" />
  </protocol-plugin>
  

Monitoring the services

 
  <!-- VMware Tools Windows Unix -->
  <service name="MS-VMware-Physical-Disk-Helper" interval="300000" user-defined="false" scan="on">
      <parameter key="timeout" value="4950" />
      <parameter key="retry" value="6" />
      <parameter key="service-name" value="VMware Physical Disk Helper Service" />
  </service>
  <service name="MS-VMware-Tools" interval="300000" user-defined="false" scan="on">
      <parameter key="timeout" value="4950" />
      <parameter key="retry" value="6" />
      <parameter key="service-name" value="VMware Tools-Dienst" />
  </service>
  <service name="Proc-VMware-guestd" interval="300000" user-defined="false" status="on">
      <parameter key="retry" value="6"/>
      <parameter key="timeout" value="4950"/>
      <parameter key="service-name" value="vmware-guestd"/>
  </service>
  <service name="Proc-VMware-vmmemctl" interval="300000" user-defined="false" status="on">
      <parameter key="retry" value="6"/>
      <parameter key="timeout" value="4950"/>
      <parameter key="service-name" value="vmmemctl"/>
  </service>

  <!-- VMware Tools Windows Unix -->
  <monitor service="MS-VMware-Physical-Disk-Helper" class-name="org.opennms.netmgt.poller.monitors.Win32ServiceMonitor" />
  <monitor service="MS-VMware-Tools" class-name="org.opennms.netmgt.poller.monitors.Win32ServiceMonitor" />
  <monitor service="Proc-VMware-guestd" class-name="org.opennms.netmgt.poller.monitors.HostResourceSwRunMonitor"/>
  <monitor service="Proc-VMware-vmmemctl" class-name="org.opennms.netmgt.poller.monitors.HostResourceSwRunMonitor"/>
  

Change your timeouts and retry settings to your needs, I have some heavy load machines and on with higher timeouts and more retries I have a lot less 30 second outages.