diff --git a/PROMS/Volian.Controls.Library/DisplayLibDocs.cs b/PROMS/Volian.Controls.Library/DisplayLibDocs.cs
index d329ee57..7a33b7a8 100644
--- a/PROMS/Volian.Controls.Library/DisplayLibDocs.cs
+++ b/PROMS/Volian.Controls.Library/DisplayLibDocs.cs
@@ -241,7 +241,7 @@ namespace Volian.Controls.Library
 			try
 			{
 				FileInfo fi = new FileInfo(temppath);
-				FileStream fs = File.Open(temppath, FileMode.Open, FileAccess.Read, FileShare.None);
+				FileStream fs = File.Open(temppath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 				long len = fs.Length;
 				byte[] ByteArray = new byte[len];
 				int nBytesRead = fs.Read(ByteArray, 0, (int)len);