TestMain.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
 
public static class TestMain
{
	static void Main(string[] args)
	{
		var pb = new ProcessArgumentBuilder ();
		pb.AddQuoted (args.Skip (1));

		var p = Process.Start (
			new ProcessStartInfo (args[0], pb.ToString ())
			{ UseShellExecute = false }
		);

		p.WaitForExit ();
		Environment.Exit (p.ExitCode);
	}
}


/// <summary>
/// Builds a process argument string.
/// </summary>
public class ProcessArgumentBuilder
{
	StringBuilder sb = new StringBuilder ();
	
	// .NET doesn't allow escaping chars other than " and \ inside " quotes
	static string escapeDoubleQuoteCharsStr = "\\\"";
	
	/// <summary>Adds an argument, quoting and escaping as necessary.</summary>
	/// <remarks>The .NET process class does not support escaped 
	/// arguments, only quoted arguments with escaped quotes.</remarks>
	public void AddQuoted (string argument)
	{
		if (argument == null)
			return;
		if (sb.Length > 0)
			sb.Append (' ');
		
		sb.Append ('"');
		AppendEscaped (sb, escapeDoubleQuoteCharsStr, argument);
		sb.Append ('"');
	}
	
	/// <summary>
	/// Adds multiple arguments, quoting and escaping each as necessary.
	/// </summary>
	public void AddQuoted (IEnumerable<string> args)
	{
		foreach (var a in args)
			AddQuoted (a);
	}
	
	public override string ToString ()
	{
		return sb.ToString ();
	}
	
	static void AppendEscaped (StringBuilder sb, string escapeChars, string s)
	{
		for (int i = 0; i < s.Length; i++) {
			char c = s[i];
			if (escapeChars.IndexOf (c) > -1)
				sb.Append ('\\');
			sb.Append (c);
		}
	}
}