StringBuilder SB = new StringBuilder();
            SB.AppendFormat("Get-VM -Id {0} | Set-VM ", Id);

if (ProcessorCount > 0)
                SB.AppendFormat("-ProcessorCount {0} ", ProcessorCount);

if (string.IsNullOrEmpty(MemoryStartupBytes) || string.IsNullOrEmpty(MemoryStartupBytes))
                sadsadsadasdada
            else if (bla bla)
                sdsdsadsadsada
            else

class NewVMResult
    {
        public string VMId { get; set; }
        public string VMName { get; set; }
    }

static NewVMResult NewVM(string Name, string Path)
        {
            IEnumerable<dynamic> PSResult = PSShell.AddCommand("New-VM")
                                                   .AddParameter("Name", Name)
                                                   .AddParameter("Path", Path)
                                                   .Invoke();
 
            var PSObject = PSResult.FirstOrDefault();
            return new NewVMResult() { VMId = PSObject.Id.ToString(), VMName = PSObject.VMName };            
        }