diff --git a/NBug/Core/Util/Storage/AdditionalFile.cs b/NBug/Core/Util/Storage/AdditionalFile.cs
index e56ec2d..c73ef7c 100644
--- a/NBug/Core/Util/Storage/AdditionalFile.cs
+++ b/NBug/Core/Util/Storage/AdditionalFile.cs
@@ -40,7 +40,7 @@ public static implicit operator AdditionalFile(String o)
         /// Add all additional files represented by this instance to the zip file using the zipStorer
         /// </summary>
         /// <param name="zipStorer"></param>
-        public void AddToZip(ZipStorer zipStorer)
+        internal void AddToZip(ZipStorer zipStorer)
         {
             // Join before spliting because the mask may have some folders inside it
             var fullPath = Path.Combine(Settings.NBugDirectory, FilePath);
diff --git a/NBug/Core/Util/Storage/ZipStorer.cs b/NBug/Core/Util/Storage/ZipStorer.cs
index c16dcfc..b97eb91 100644
--- a/NBug/Core/Util/Storage/ZipStorer.cs
+++ b/NBug/Core/Util/Storage/ZipStorer.cs
@@ -12,7 +12,7 @@ namespace NBug.Core.Util.Storage
 	/// <summary>
 	/// Unique class for compression/decompression file. Represents a Zip file.
 	/// </summary>
-	public class ZipStorer : IDisposable
+	internal class ZipStorer : IDisposable
 	{
 		#region Constants and Fields
 
@@ -628,13 +628,13 @@ public void Dispose()
 
 		/* DOS Date and time:
             MS-DOS date. The date is a packed value with the following format. Bits Description
-                0-4 Day of the month (1–31)
+                0-4 Day of the month (1�31)
                 5-8 Month (1 = January, 2 = February, and so on)
                 9-15 Year offset from 1980 (add 1980 to get actual year)
             MS-DOS time. The time is a packed value with the following format. Bits Description
                 0-4 Second divided by 2
-                5-10 Minute (0–59)
-                11-15 Hour (0–23 on a 24-hour clock)
+                5-10 Minute (0�59)
+                11-15 Hour (0�23 on a 24-hour clock)
         */
 
 		#region Methods
@@ -1069,4 +1069,4 @@ public override string ToString()
 			#endregion Public Methods
 		}
 	}
-}
\ No newline at end of file
+}