static extern UInt32 PdhLookupPerfNameByIndex(string szMachineName, uint dwNameIndex, StringBuilder szNameBuffer, ref uint pcchNameBufferSize);

Declare Function PdhLookupPerfNameByIndex Lib "pdh.dll" (TODO) As TODO

iRet = PdhLookupPerfNameByIndex(null, iProcessorQueueLength, buffer, ref bufSize);