ASP.NET/C# - Custom PerformanceCounters only show up in 32-bit perfmon on 64-bit system

internal static void Increment(String instanceName, DistributedCacheCounterInstanceType counterInstanceType)
{
    var permission = new PerformanceCounterPermission(PerformanceCounterPermissionAccess.Write, Environment.MachineName, "CounterName");
    permission.Assert();

    var counter = new PerformanceCounter("CategoryName", "CounterName", instanceName, false);
    counter.RawValue++; // Use RawValue++ instead of Increment() to avoid locking
    counter.Close();
}