using System;
using System.Linq;
using System.Text.RegularExpressions;
public class Test
{
	public static void Main()
	{
		var log = "time=value1 size=value2 dll=aDllName dll=anotherDllName, someParam=ParamValue dll=yetAnotherDll, someOhterParam=anotherParamValue aStandAloneValue dll=oneMoreDll, andItsParam=value anotherParam=value lastParam=value";
		var res = Regex.Matches(log, @"\bdll=(?:(?!\bdll=).)*|\w+=\w+")
		         .Cast<Match>()
		         .Select(p => p.Value)
		         .ToList();
		Console.WriteLine(string.Join("\n",res));
	}
}

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