C#

Email: theeclypse@hotmail.com   URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

[Flags]
public enum TokenAccessRights
{
	ASSIGN_PRIMARY    =(0x0001),
	DUPLICATE         =(0x0002),
	IMPERSONATE       =(0x0004),
	QUERY             =(0x0008),
	QUERY_SOURCE      =(0x0010),
	ADJUST_PRIVILEGES =(0x0020),
	ADJUST_GROUPS     =(0x0040),
	ADJUST_DEFAULT    =(0x0080),
	ADJUST_SESSIONID  =(0x0100),

	ALL_ACCESS_P =(STANDARD_RIGHTS_REQUIRED  |
		ASSIGN_PRIMARY      |
		DUPLICATE           |
		IMPERSONATE         |
		QUERY               |
		QUERY_SOURCE        |
		ADJUST_PRIVILEGES   |
		ADJUST_GROUPS       |
		ADJUST_DEFAULT ),

	ALL_ACCESS  =(ALL_ACCESS_P |
		ADJUST_SESSIONID ),

	READ       =(STANDARD_RIGHTS_READ      |
		QUERY),

	WRITE      =(STANDARD_RIGHTS_WRITE     |
		ADJUST_PRIVILEGES   |
		ADJUST_GROUPS       |
		ADJUST_DEFAULT),

	EXECUTE    =(STANDARD_RIGHTS_EXECUTE),
}

[Flags]
public enum AccessMask
{
	DELETE                           =(0x00010000),
	READ_CONTROL                     =(0x00020000),
	WRITE_DAC                        =(0x00040000),
	WRITE_OWNER                      =(0x00080000),
	SYNCHRONIZE                      =(0x00100000),

	STANDARD_RIGHTS_REQUIRED         =(0x000F0000),

	STANDARD_RIGHTS_READ             =(READ_CONTROL),
	STANDARD_RIGHTS_WRITE            =(READ_CONTROL),
	STANDARD_RIGHTS_EXECUTE          =(READ_CONTROL),

	STANDARD_RIGHTS_ALL              =(0x001F0000),

	SPECIFIC_RIGHTS_ALL              =(0x0000FFFF),
}

So you would write it as (you can copy, its correct :

Email: theeclypse@hotmail.com   URL: http://www.onyeyiri.co.uk
"All programmers are playwrights and all computers are lousy actors."

[DllImport("Advapi32.dll")]
static extern bool OpenProcessToken(IntPtr ProcessHandle, 
    [MarshalAs(UnmanagedType.U4)] TokenAccessRight DesiredAccess,
    out IntPtr TokenHandle);

ArrayList list = new ArrayList();
list.Add("item0");
list.Add("item1");
list.Add(null);
list.Add("item3");
Console.WriteLine("With null value at index 2:");
foreach (string str in list)
{
	Console.WriteLine(str);
}
Console.WriteLine("");
list.RemoveAt(2);
Console.WriteLine("Without null value at index 2:");
foreach (string str in list)
{
	Console.WriteLine(str);
}

for (int i = 0; i < list.Count; i++) // at this point Count includes the null at pos 3;
{
  if (list[i] == null) { list.RemoveAt(i); i--; continue;} //on the next loop, list[i] still == null
  //carry on doing the other stuff
}