diff --git a/PROMS/Volian.Controls.Library/DisplaySearch.cs b/PROMS/Volian.Controls.Library/DisplaySearch.cs
index 90cd3e0f..13e999c4 100644
--- a/PROMS/Volian.Controls.Library/DisplaySearch.cs
+++ b/PROMS/Volian.Controls.Library/DisplaySearch.cs
@@ -1444,6 +1444,11 @@ namespace Volian.Controls.Library
 		}
 		private void cbxBooleanTxtSrch_CheckedChanged(object sender, EventArgs e)
 		{
+			//Boolean search uses a list of noise, or STOP, words. This list can be found
+			// in file: C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\FTData\noiseenu.txt.
+			// Another file exists in that directory, tsenu.xml, this is a thesaurus. RHM tried
+			// to use around 2010, but couldn't get it to work for words like 'dg' versus 'diesel generator',
+			// and 'sg' versus 'steam generator'.
 			if (cbxBooleanTxtSrch.Checked)
 			{
 				gpSrchText.Style.BackColor = Color.Orange;