diff --git a/PROMS/AdjustBuildRevision/Program.cs b/PROMS/AdjustBuildRevision/Program.cs
index a7192339..49793101 100644
--- a/PROMS/AdjustBuildRevision/Program.cs
+++ b/PROMS/AdjustBuildRevision/Program.cs
@@ -12,32 +12,88 @@ namespace AdjustBuildRevision
 		static void Main(string[] args)
 		{
 			// args[0] - FileName
-			FileInfo fi = new FileInfo(args[0]);
-			if (fi.Exists)
+			try
 			{
-				StreamReader sr = fi.OpenText();
-				string content = sr.ReadToEnd();
-				sr.Close();
-				StreamWriter sw = fi.CreateText();
-				string[] seps = { "\r\n" };
-				string[] lines = content.Split(seps, StringSplitOptions.None);
-				foreach (string line in lines)
+				FileInfo fi = new FileInfo(args[0]);
+				DateTime dtLatest = GetLatestDateTime(fi.Directory.Parent,fi.LastWriteTime);
+				if (fi.Exists)
 				{
-					string outline = line;
-					if (line.Contains("AssemblyVersion") || line.Contains("AssemblyFileVersion"))
+					StreamReader sr = fi.OpenText();
+					string content = sr.ReadToEnd();
+					sr.Close();
+					string[] seps = { "\r\n" };
+					string[] lines = content.Split(seps, StringSplitOptions.None);
+					bool changed = false;
+					for (int i = 0; i < lines.Length;i++ )
 					{
-						Console.WriteLine("Before: '{0}'", line);
-						outline = Regex.Replace(line,@"([0-9]*)\.([0-9]*)""\)", DateTime.Now.ToString("yyMM.dHH")+"\")");
-						Console.WriteLine("After:  '{0}'", outline);
+						string line = lines[i];
+						string outline = line;
+						if (line.Contains("AssemblyVersion") || line.Contains("AssemblyFileVersion"))
+						{
+							outline = Regex.Replace(line, @"([0-9]*)\.([0-9]*)\.([0-9]*)\.([0-9]*)""\)", DateTime.Now.ToString("1.1.yyMM.dHH") + "\")");
+							if (outline != line)
+							{
+								Console.WriteLine("Before: '{0}'", line);
+								Console.WriteLine("After:  '{0}'", outline);
+								lines[i] = outline;
+								changed = true;
+							}
+							else
+							{
+								Console.WriteLine("No change: '{0}'", line);
+							}
+						}
+					}
+					if (changed)
+					{
+						if (!fi.IsReadOnly) fi.IsReadOnly = false;
+						StreamWriter sw = fi.CreateText();
+						foreach (string line in lines)
+							sw.WriteLine(line);
+						sw.Close();
 					}
-					sw.WriteLine(outline);
 				}
-				sw.Close();
+				else
+				{
+					MessageBox.Show("File " + fi.FullName + " does not exist");
+				}
 			}
-			else
+			catch (Exception ex)
 			{
-				MessageBox.Show("File " + fi.FullName + " does not exist");
+				MessageBox.Show(ex.Message, ex.GetType().FullName, MessageBoxButtons.OK, MessageBoxIcon.Error);
 			}
 		}
+
+		//private static DateTime GetLatestDateTime(string path)
+		//{
+		//	return GetLatestDateTime(new DirectoryInfo(path));
+		//}
+		private static DateTime GetLatestDateTime(DirectoryInfo di, DateTime dtCheck)
+		{
+			DateTime dtMax = dtCheck;
+			FileInfo[] myFiles = di.GetFiles();
+			foreach(FileInfo myFile in myFiles)
+			{
+				DateTime dt = myFile.LastWriteTime;
+				//if (dt > dtCheck)
+				//{
+					//Console.WriteLine("\"File\"\t\"{0}\"\t\"{1}\"\t{2}\t{3}",myFile.FullName,dt.ToString("1.1.yyMM.dHH"),dt,dtCheck);
+					if(dtMax < dt) dtMax = dt;
+				//}
+			}
+			DirectoryInfo[] myFolders = di.GetDirectories();
+			foreach (DirectoryInfo diChild in myFolders)
+			{
+				DateTime dtChild = GetLatestDateTime(diChild,dtCheck);
+				//if (dtChild > dtCheck)
+				//{
+					//Console.WriteLine("\"SubFolder\"\t\"{0}\"\t\"{1}\"\t{2}\t{3}", diChild.FullName, dtChild.ToString("1.1.yyMM.dHH"),dtChild,dtCheck);
+					if(dtChild > dtMax) dtMax = dtChild;
+				//}
+			}
+			//if(dtMax > dtCheck)
+			//	Console.WriteLine("\"Folder\"\t\"{0}\"\t\"{1}\"", di.FullName, dtMax.ToString("1.1.yyMM.dHH"));
+			return dtMax;
+		}
 	}
 }