System.InvalidOperationException: Category does not exist.
   at System.Diagnostics.PerformanceCounterLib.CounterExists(String machine,
String category, String counter)
   at System.Diagnostics.PerformanceCounter.Initialize()
   at System.Diagnostics.PerformanceCounter.NextSample()
   at System.Diagnostics.PerformanceCounter.NextValue()
   at ProcessManager.frmMain.Timer2_Tick(Object sender, EventArgs e)
   at System.Windows.Forms.Timer.OnTick(EventArgs e)
   at System.Windows.Forms.Timer.Callback(IntPtr hWnd, Int32 msg, IntPtr
idEvent, IntPtr dwTime)

*********************************************
How to slove this problem?
Thank you

Supply some code to do with Timer 2 on frmMain, which will help matters
somewhat.

Why don't you convert your Handle (Hwnd) to integer, idEvent to integer &
dwTime to either integer or double?

Again, we need your code to help you

Crouchie1998
BA (HONS) MCP MCSE
Official Microsoft Beta Tester

Thank you, my code:
****************************************
For Each eachProcess As Process In Process.GetProcesses()
                    arrPro(0) = eachProcess.MainModule.ModuleName
....
Next
****************************************

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'Process' is based on performance counters, if they are disabled or you
don't have rights to access them using 'Process.GetProcesses' will fail.  In
Windows 2003 you will have to add the user to a certain group in order to be
able to access performance counters:

<URL:http://groups.google.de/groups?selm=eiSs875PDHA.1072%40TK2MSFTNGP10.phx.gbl>

My OS is Windows XP, how to ensure to enable performance counters?

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