I have found a code in MSDN as follows
this.performanceCounter1.CategoryName = ".NET CLR Memory";
this.performanceCounter1.CounterName = "Gen 0 heap size";
this.performanceCounter1.InstanceName = "_Global_";
I understood the first 2 lines. It associates performanceCounter1 with a categoryname and countername. But what is meant by thirdline..What is _Global_. Is it a keyword? I have searched MSDN a lot. But did not find any explanation for it... Can any one help me to understand what it means..