Process.StartTime Access Denied

Question

My code needs to determine how long a particular process has been running. But it continues to fail with an access denied error message on the Process.StartTime

Answer 1

I've read something similar to what you said in the past, Lars. Unfortunately, I'm somewhat restricted with what I can do with the machine in question (in other words, I can't go creating user groups willy-nilly: it's a server, not just some random PC).

Thanks for the answers, Will and Lars. Unfortunately, they didn't solve my problem.

Ultimate solution to this is to use WMI:

using System.Management;
String queryString = "select CreationDate from Win32_Process where ProcessId='" + ProcessId + "'";
SelectQuery query = new SelectQuery(queryString);

ManagementScope scope = new System.Management.ManagementScope(@"\\.\root\CIMV2");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query);
ManagementObjectCollection processes = searcher.Get();

    //... snip ... logic to figure out which of the processes in the collection is the right one goes here

DateTime startTime = ManagementDateTimeConverter.ToDateTime(processes[0]["CreationDate"].ToString());
TimeSpan uptime = DateTime.Now.Subtract(startTime);

Parts of this were scraped from Code Project:

http://www.codeproject.com/KB/system/win32processusingwmi.aspx

And "Hey, Scripting Guy!":

http://www.microsoft.com/technet/scriptcenter/resources/qanda/jul05/hey0720.mspx