C#

Process[] sameProcesses = Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName);
if(sameProcesses.Length == 1)
{
   //... only 1 process, is ok.
}
else
{
   //... more than 1 process, is not ok.
}

MrEyes wrote:

I need to convert that intial string into it human readable format

string humanReadable = inputString.Replace("4e554c4c00","NULL");

MrEyes wrote:

Which is a HEX representation of NULL

4e554c4c00

4e
55
4c
4c

N
U
L
L

byte[] b = new byte[4] {0x4e, 0x55, 0x4c, 0x4c};
string s = System.Text.Encoding.ASCII.GetString(b);

static string HexToString(string input)
{
	byte[] b = new byte[input.Length / 2];
	for(int i = 0; i < input.Length; i+=2)
		b[i / 2] = byte.Parse(input.Substring(i, 2), NumberStyles.HexNumber);
			
	return System.Text.Encoding.ASCII.GetString(b);
}

stancrm wrote:

First you must change your "4e554c4c" into byte array.

public static string HexToString(string input)
{
	input = input.Substring(0, input.Length - 2); //remove terminator

	byte[] b = new byte[input.Length / 2];
	
	for(int i = 0; i < input.Length; i+=2)
	{
		b[i / 2] = byte.Parse(input.Substring(i, 2), System.Globalization.NumberStyles.HexNumber);
	}
	
	return System.Text.Encoding.ASCII.GetString(b);
}

private static string HexToText(string hex)
{
   string result = string.Empty;
   
   for (Int32 i = 0; i < hex.Length; i += 2)
      result += (char)byte.Parse(hex.Substring(i, 2), System.Globalization.NumberStyles.HexNumber);
   
   return result;
}