diff --git a/PROMS/Volian.Controls.Library/ListBoxMulti.cs b/PROMS/Volian.Controls.Library/ListBoxMulti.cs
index 51582552..74acaa54 100644
--- a/PROMS/Volian.Controls.Library/ListBoxMulti.cs
+++ b/PROMS/Volian.Controls.Library/ListBoxMulti.cs
@@ -7,6 +7,8 @@ using System.Windows.Forms;
 
 namespace Volian.Controls.Library
 {
+    //Class to handle bug in Windows WinForms ListBox
+    // that autoselects first item when no items are selected 
     public partial class ListBoxMulti : ListBox
     {
         public ListBoxMulti()
@@ -19,8 +21,13 @@ namespace Volian.Controls.Library
             Disposed += ListBoxMulti_Disposed;
         }
 
+        //singleselectedindex
+        // will help to fix bug in Winforms ListBox
+        // that autoselects first item when no items are selected
+        // -1 = multi or set to this after 1st initialization
+        // if this = 0 and only 1 item selected,
+        // that means item was autoselected, so clear all items.
         public int singleselectedindex { get; set; }
-
         private void lb_SelectedIndexChanged(object sender, EventArgs e)
         {
             ListBoxMulti tmp = (ListBoxMulti)sender;
@@ -36,6 +43,7 @@ namespace Volian.Controls.Library
 
         }
 
+        //remove event when get rid of object
         private void ListBoxMulti_Disposed(object sender, EventArgs e)
         {
             SelectedIndexChanged -= lb_SelectedIndexChanged;
diff --git a/PROMS/Volian.Controls.Library/frmEPAnnotationDetails.cs b/PROMS/Volian.Controls.Library/frmEPAnnotationDetails.cs
index 44c3cada..6b66749e 100644
--- a/PROMS/Volian.Controls.Library/frmEPAnnotationDetails.cs
+++ b/PROMS/Volian.Controls.Library/frmEPAnnotationDetails.cs
@@ -168,6 +168,7 @@ namespace Volian.Controls.Library
 
 			foreach (KeyValuePair<string, ListBoxMulti> pair in _DicMultiRO)
 			{
+				//clear all items at start in case items were autoselected - bug in Winforms ListBox
 				pair.Value.ClearSelected();
 				string val = MyConfig.GetValue("EP", pair.Key);
 				if (val != null && val != "")
@@ -180,6 +181,10 @@ namespace Volian.Controls.Library
 							pair.Value.SetSelected(pair.Value.FindString(text), true);
 						}
 				}
+
+				//set this to -1 after initial setting of values
+				//this will help to fix bug in Winforms ListBox
+				//that autoselects first item when no items are selected
 				pair.Value.singleselectedindex = -1;
 			}