NSClient++ Help (#1) - PerfMon? counter + NSClient (#784) - Message List

Hello, We use the NSCLient ++ V 0.3.8.75 and Icinga 1.3 "Client" OS: Win 2k3(x32/x64) & 2k8R2 (x64)

We have two problems: 1. ErrorMSG: PdhGetFormattedCounterValue? failed: A counter with a negative denominator value was detected. Can we avoid this? How can a counter come back with a negative value? This error comes sporadically.

2. ErrorMSG: Failed to get mutex for PdhValidatePath?. This comes very often. Mainly on our MS Exchange systems.

Can anyone help? Need more info?