diff --git a/SabreTools.Helper/Dats/Partials/DatFile.Parsers.cs b/SabreTools.Helper/Dats/Partials/DatFile.Parsers.cs
index 564f131d..c7f03448 100644
--- a/SabreTools.Helper/Dats/Partials/DatFile.Parsers.cs
+++ b/SabreTools.Helper/Dats/Partials/DatFile.Parsers.cs
@@ -226,7 +226,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			sr.ReadLine(); // Skip the first line since it's the header
 			while (!sr.EndOfStream)
@@ -317,7 +317,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			bool block = false, superdat = false;
 			string blockname = "", tempgamename = "", gamedesc = "", cloneof = "",
@@ -933,7 +933,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			// Create an empty list of columns to parse though
 			List<string> columns = new List<string>();
@@ -2441,7 +2441,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			while (!sr.EndOfStream)
 			{
@@ -2500,7 +2500,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			while (!sr.EndOfStream)
 			{
@@ -2559,7 +2559,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			while (!sr.EndOfStream)
 			{
@@ -2618,7 +2618,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			while (!sr.EndOfStream)
 			{
@@ -2677,7 +2677,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			while (!sr.EndOfStream)
 			{
@@ -2736,7 +2736,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			while (!sr.EndOfStream)
 			{
@@ -2797,7 +2797,7 @@ namespace SabreTools.Helper.Dats
 		{
 			// Open a file reader
 			Encoding enc = Style.GetEncoding(filename);
-			StreamReader sr = new StreamReader(File.OpenRead(filename), enc);
+			StreamReader sr = new StreamReader(File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), enc);
 
 			string blocktype = "";
 			while (!sr.EndOfStream)
diff --git a/SabreTools.Helper/External/SupportedFiles/ZipFile.cs b/SabreTools.Helper/External/SupportedFiles/ZipFile.cs
index cf92746c..8628107b 100644
--- a/SabreTools.Helper/External/SupportedFiles/ZipFile.cs
+++ b/SabreTools.Helper/External/SupportedFiles/ZipFile.cs
@@ -427,7 +427,7 @@ namespace ROMVault2.SupportedFiles.Zip
 				}
 
 				// Now try to open the file for reading
-				_zipstream = File.OpenRead(filename);
+				_zipstream = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 				int read = _zipstream.Read(new byte[1], 0, 1);
 				if (read != 1)
 				{
diff --git a/SabreTools.Helper/External/Zlib/DeflateStream.cs b/SabreTools.Helper/External/Zlib/DeflateStream.cs
index 9e0e31e7..ae9e2d80 100644
--- a/SabreTools.Helper/External/Zlib/DeflateStream.cs
+++ b/SabreTools.Helper/External/Zlib/DeflateStream.cs
@@ -82,7 +82,7 @@ namespace Ionic.Zlib
 		/// This example uses a DeflateStream to compress data from a file, and writes
 		/// the compressed data to another file.
 		/// <code>
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(fileToCompress + ".deflated"))
 		///	 {
@@ -100,7 +100,7 @@ namespace Ionic.Zlib
 		/// </code>
 		///
 		/// <code lang="VB">
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(fileToCompress &amp; ".deflated")
 		///		 Using compressor As Stream = New DeflateStream(raw, CompressionMode.Compress)
 		///			 Dim buffer As Byte() = New Byte(4096) {}
@@ -143,7 +143,7 @@ namespace Ionic.Zlib
 		///   the compressed data to another file.
 		///
 		/// <code>
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(fileToCompress + ".deflated"))
 		///	 {
@@ -165,7 +165,7 @@ namespace Ionic.Zlib
 		/// </code>
 		///
 		/// <code lang="VB">
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(fileToCompress &amp; ".deflated")
 		///		 Using compressor As Stream = New DeflateStream(raw, CompressionMode.Compress, CompressionLevel.BestCompression)
 		///			 Dim buffer As Byte() = New Byte(4096) {}
@@ -263,7 +263,7 @@ namespace Ionic.Zlib
 		/// <code>
 		/// using (var output = System.IO.File.Create(fileToCompress + ".deflated"))
 		/// {
-		///	 using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		///	 using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		///	 {
 		///		 using (Stream compressor = new DeflateStream(output, CompressionMode.Compress, CompressionLevel.BestCompression, true))
 		///		 {
@@ -283,7 +283,7 @@ namespace Ionic.Zlib
 		///
 		/// <code lang="VB">
 		/// Using output As FileStream = File.Create(fileToCompress &amp; ".deflated")
-		///	 Using input As Stream = File.OpenRead(fileToCompress)
+		///	 Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///		 Using compressor As Stream = New DeflateStream(output, CompressionMode.Compress, CompressionLevel.BestCompression, True)
 		///			 Dim buffer As Byte() = New Byte(4096) {}
 		///			 Dim n As Integer = -1
diff --git a/SabreTools.Helper/External/Zlib/GZipStream.cs b/SabreTools.Helper/External/Zlib/GZipStream.cs
index 42b52f74..44edaafa 100644
--- a/SabreTools.Helper/External/Zlib/GZipStream.cs
+++ b/SabreTools.Helper/External/Zlib/GZipStream.cs
@@ -267,7 +267,7 @@ namespace Ionic.Zlib
 		/// <example>
 		///   This example shows how to use a GZipStream to compress data.
 		/// <code>
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(outputFile))
 		///	 {
@@ -285,7 +285,7 @@ namespace Ionic.Zlib
 		/// </code>
 		/// <code lang="VB">
 		/// Dim outputFile As String = (fileToCompress &amp; ".compressed")
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(outputFile)
 		///	 Using compressor As Stream = New GZipStream(raw, CompressionMode.Compress)
 		///		 Dim buffer As Byte() = New Byte(4096) {}
@@ -312,7 +312,7 @@ namespace Ionic.Zlib
 		///	 var DecompressedFile = filename.Substring(0,filename.Length-3);
 		///	 byte[] working = new byte[WORKING_BUFFER_SIZE];
 		///	 int n= 1;
-		///	 using (System.IO.Stream input = System.IO.File.OpenRead(filename))
+		///	 using (System.IO.Stream input = System.IO.File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		///	 {
 		///		 using (Stream decompressor= new Ionic.Zlib.GZipStream(input, CompressionMode.Decompress, true))
 		///		 {
@@ -340,7 +340,7 @@ namespace Ionic.Zlib
 		///	 Dim DecompressedFile as String = filename.Substring(0,filename.Length-3)
 		///	 Dim working(WORKING_BUFFER_SIZE) as Byte
 		///	 Dim n As Integer = 1
-		///	 Using input As Stream = File.OpenRead(filename)
+		///	 Using input As Stream = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///		 Using decompressor As Stream = new Ionic.Zlib.GZipStream(input, CompressionMode.Decompress, True)
 		///			 Using output As Stream = File.Create(UncompressedFile)
 		///				 Do
@@ -384,7 +384,7 @@ namespace Ionic.Zlib
 		/// This example shows how to use a <c>GZipStream</c> to compress a file into a .gz file.
 		///
 		/// <code>
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(fileToCompress + ".gz"))
 		///	 {
@@ -404,7 +404,7 @@ namespace Ionic.Zlib
 		/// </code>
 		///
 		/// <code lang="VB">
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(fileToCompress &amp; ".gz")
 		///		 Using compressor As Stream = New GZipStream(raw, CompressionMode.Compress, CompressionLevel.BestCompression)
 		///			 Dim buffer As Byte() = New Byte(4096) {}
@@ -512,7 +512,7 @@ namespace Ionic.Zlib
 		/// <example>
 		///   This example shows how to use a <c>GZipStream</c> to compress data.
 		/// <code>
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(outputFile))
 		///	 {
@@ -530,7 +530,7 @@ namespace Ionic.Zlib
 		/// </code>
 		/// <code lang="VB">
 		/// Dim outputFile As String = (fileToCompress &amp; ".compressed")
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(outputFile)
 		///	 Using compressor As Stream = New GZipStream(raw, CompressionMode.Compress, CompressionLevel.BestCompression, True)
 		///		 Dim buffer As Byte() = New Byte(4096) {}
@@ -785,7 +785,7 @@ namespace Ionic.Zlib
 		/// <example>
 		/// <code>
 		/// byte[] working = new byte[WORKING_BUFFER_SIZE];
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(_CompressedFile))
+		/// using (System.IO.Stream input = System.IO.File.Open(_CompressedFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (Stream decompressor= new Ionic.Zlib.GZipStream(input, CompressionMode.Decompress, true))
 		///	 {
diff --git a/SabreTools.Helper/External/Zlib/ParallelDeflateOutputStream.cs b/SabreTools.Helper/External/Zlib/ParallelDeflateOutputStream.cs
index c5a4695f..7f9e116a 100644
--- a/SabreTools.Helper/External/Zlib/ParallelDeflateOutputStream.cs
+++ b/SabreTools.Helper/External/Zlib/ParallelDeflateOutputStream.cs
@@ -185,7 +185,7 @@ namespace Ionic.Zlib
 		/// byte[] buffer = new byte[WORKING_BUFFER_SIZE];
 		/// int n= -1;
 		/// String outputFile = fileToCompress + ".compressed";
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(outputFile))
 		///	 {
@@ -203,7 +203,7 @@ namespace Ionic.Zlib
 		/// Dim buffer As Byte() = New Byte(4096) {}
 		/// Dim n As Integer = -1
 		/// Dim outputFile As String = (fileToCompress &amp; ".compressed")
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(outputFile)
 		///		 Using compressor As Stream = New ParallelDeflateOutputStream(raw)
 		///			 Do While (n &lt;&gt; 0)
@@ -826,7 +826,7 @@ namespace Ionic.Zlib
 		/// foreach (var inputFile in listOfFiles)
 		/// {
 		///	 string outputFile = inputFile + ".compressed";
-		///	 using (System.IO.Stream input = System.IO.File.OpenRead(inputFile))
+		///	 using (System.IO.Stream input = System.IO.File.Open(inputFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		///	 {
 		///		 using (var outStream = System.IO.File.Create(outputFile))
 		///		 {
diff --git a/SabreTools.Helper/External/Zlib/ZlibStream.cs b/SabreTools.Helper/External/Zlib/ZlibStream.cs
index e13fa1dc..a762fb68 100644
--- a/SabreTools.Helper/External/Zlib/ZlibStream.cs
+++ b/SabreTools.Helper/External/Zlib/ZlibStream.cs
@@ -89,7 +89,7 @@ namespace Ionic.Zlib
 		/// This example uses a <c>ZlibStream</c> to compress a file, and writes the
 		/// compressed data to another file.
 		/// <code>
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(fileToCompress + ".zlib"))
 		///	 {
@@ -106,7 +106,7 @@ namespace Ionic.Zlib
 		/// }
 		/// </code>
 		/// <code lang="VB">
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(fileToCompress &amp; ".zlib")
 		///	 Using compressor As Stream = New ZlibStream(raw, CompressionMode.Compress)
 		///		 Dim buffer As Byte() = New Byte(4096) {}
@@ -149,7 +149,7 @@ namespace Ionic.Zlib
 		///   compressed data to another file.
 		///
 		/// <code>
-		/// using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		/// using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		/// {
 		///	 using (var raw = System.IO.File.Create(fileToCompress + ".zlib"))
 		///	 {
@@ -169,7 +169,7 @@ namespace Ionic.Zlib
 		/// </code>
 		///
 		/// <code lang="VB">
-		/// Using input As Stream = File.OpenRead(fileToCompress)
+		/// Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///	 Using raw As FileStream = File.Create(fileToCompress &amp; ".zlib")
 		///		 Using compressor As Stream = New ZlibStream(raw, CompressionMode.Compress, CompressionLevel.BestCompression)
 		///			 Dim buffer As Byte() = New Byte(4096) {}
@@ -267,7 +267,7 @@ namespace Ionic.Zlib
 		/// <code>
 		/// using (var output = System.IO.File.Create(fileToCompress + ".zlib"))
 		/// {
-		///	 using (System.IO.Stream input = System.IO.File.OpenRead(fileToCompress))
+		///	 using (System.IO.Stream input = System.IO.File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
 		///	 {
 		///		 using (Stream compressor = new ZlibStream(output, CompressionMode.Compress, CompressionLevel.BestCompression, true))
 		///		 {
@@ -284,7 +284,7 @@ namespace Ionic.Zlib
 		/// </code>
 		/// <code lang="VB">
 		/// Using output As FileStream = File.Create(fileToCompress &amp; ".zlib")
-		///	 Using input As Stream = File.OpenRead(fileToCompress)
+		///	 Using input As Stream = File.Open(fileToCompress, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)
 		///		 Using compressor As Stream = New ZlibStream(output, CompressionMode.Compress, CompressionLevel.BestCompression, True)
 		///			 Dim buffer As Byte() = New Byte(4096) {}
 		///			 Dim n As Integer = -1
diff --git a/SabreTools.Helper/Skippers/Skipper.cs b/SabreTools.Helper/Skippers/Skipper.cs
index c30a3ed6..267467be 100644
--- a/SabreTools.Helper/Skippers/Skipper.cs
+++ b/SabreTools.Helper/Skippers/Skipper.cs
@@ -347,7 +347,7 @@ namespace SabreTools.Helper.Skippers
 				return new SkipperRule();
 			}
 
-			return GetMatchingRule(File.OpenRead(input), skipperName);
+			return GetMatchingRule(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), skipperName);
 		}
 
 		/// <summary>
diff --git a/SabreTools.Helper/Skippers/SkipperRule.cs b/SabreTools.Helper/Skippers/SkipperRule.cs
index acf60efc..8274aa33 100644
--- a/SabreTools.Helper/Skippers/SkipperRule.cs
+++ b/SabreTools.Helper/Skippers/SkipperRule.cs
@@ -53,7 +53,7 @@ namespace SabreTools.Helper.Skippers
 			}
 
 			Globals.Logger.User("Attempting to apply rule to '" + input + "'");
-			success = TransformStream(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), File.OpenWrite(output));
+			success = TransformStream(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), File.Open(output, FileMode.Open, FileAccess.Write, FileShare.ReadWrite));
 
 			// If the output file has size 0, delete it
 			if (new FileInfo(output).Length == 0)
diff --git a/SabreTools.Helper/Tools/ArchiveTools.cs b/SabreTools.Helper/Tools/ArchiveTools.cs
index 9e56e770..8c7780ff 100644
--- a/SabreTools.Helper/Tools/ArchiveTools.cs
+++ b/SabreTools.Helper/Tools/ArchiveTools.cs
@@ -80,7 +80,7 @@ namespace SabreTools.Helper.Tools
 					Directory.CreateDirectory(outDir);
 
 					// Extract all files to the temp directory
-					SevenZipArchive sza = SevenZipArchive.Open(File.OpenRead(input));
+					SevenZipArchive sza = SevenZipArchive.Open(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
 					foreach (SevenZipArchiveEntry entry in sza.Entries)
 					{
 						entry.WriteToDirectory(outDir, new ExtractionOptions{ PreserveFileTime = true, ExtractFullPath = true, Overwrite = true });
@@ -99,7 +99,7 @@ namespace SabreTools.Helper.Tools
 
 					// Decompress the input stream
 					FileStream outstream = File.Create(Path.Combine(outDir, Path.GetFileNameWithoutExtension(input)));
-					GZipStream gzstream = new GZipStream(File.OpenRead(input), Ionic.Zlib.CompressionMode.Decompress);
+					GZipStream gzstream = new GZipStream(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), Ionic.Zlib.CompressionMode.Decompress);
 					gzstream.CopyTo(outstream);
 
 					// Dispose of the streams
@@ -180,7 +180,7 @@ namespace SabreTools.Helper.Tools
 							continue;
 						}
 
-						FileStream writeStream = File.OpenWrite(Path.Combine(outDir, zf.Entries[i].FileName));
+						FileStream writeStream = File.Open(Path.Combine(outDir, zf.Entries[i].FileName), FileMode.Open, FileAccess.Write, FileShare.ReadWrite);
 
 						byte[] ibuffer = new byte[_bufferSize];
 						int ilen;
@@ -268,7 +268,7 @@ namespace SabreTools.Helper.Tools
 					case ArchiveType.GZip:
 						// Decompress the input stream
 						realEntry = Path.GetFileNameWithoutExtension(input);
-						GZipStream gzstream = new GZipStream(File.OpenRead(input), Ionic.Zlib.CompressionMode.Decompress);
+						GZipStream gzstream = new GZipStream(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite), Ionic.Zlib.CompressionMode.Decompress);
 
 						// Get the output path
 						realEntry = Path.Combine(Path.GetFullPath(tempDir), realEntry);
@@ -470,7 +470,7 @@ namespace SabreTools.Helper.Tools
 						break;
 
 					case ArchiveType.GZip:// Get the CRC and size from the file
-						BinaryReader br = new BinaryReader(File.OpenRead(input));
+						BinaryReader br = new BinaryReader(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
 						br.BaseStream.Seek(-8, SeekOrigin.End);
 						byte[] headercrc = br.ReadBytes(4);
 						crc = BitConverter.ToString(headercrc.Reverse().ToArray()).Replace("-", string.Empty).ToLowerInvariant();
@@ -617,7 +617,7 @@ namespace SabreTools.Helper.Tools
 			byte[] headermd5; // MD5
 			byte[] headercrc; // CRC
 			ulong headersz; // Int64 size
-			BinaryReader br = new BinaryReader(File.OpenRead(input));
+			BinaryReader br = new BinaryReader(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
 			header = br.ReadBytes(12);
 			headermd5 = br.ReadBytes(16);
 			headercrc = br.ReadBytes(4);
@@ -696,7 +696,7 @@ namespace SabreTools.Helper.Tools
 			try
 			{
 				byte[] magic = new byte[8];
-				BinaryReader br = new BinaryReader(File.OpenRead(input));
+				BinaryReader br = new BinaryReader(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
 				magic = br.ReadBytes(8);
 				br.Dispose();
 
@@ -863,7 +863,7 @@ namespace SabreTools.Helper.Tools
 				return;
 			}
 
-			BinaryReader br = new BinaryReader(File.OpenRead(input));
+			BinaryReader br = new BinaryReader(File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
 
 			// Check for the signature first (Skipping the SFX Module)
 			byte[] signature = br.ReadBytes(8);
@@ -1413,7 +1413,7 @@ namespace SabreTools.Helper.Tools
 				else
 				{
 					// Open the old archive for reading
-					Stream oldZipFileStream = File.OpenRead(archiveFileName);
+					Stream oldZipFileStream = File.Open(archiveFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 					oldZipFile = new SevenZipExtractor(oldZipFileStream);
 
 					// Map all inputs to index
@@ -1448,7 +1448,7 @@ namespace SabreTools.Helper.Tools
 						ArchiveFormat = OutArchiveFormat.SevenZip,
 						CompressionLevel = SevenZip.CompressionLevel.Normal,
 					};
-					Stream zipFileStream = File.OpenWrite(tempFile);
+					Stream zipFileStream = File.Open(tempFile, FileMode.Open, FileAccess.Write, FileShare.ReadWrite);
 
 					// Get the order for the entries with the new file
 					List<string> keys = inputIndexMap.Keys.ToList();
@@ -1580,7 +1580,7 @@ namespace SabreTools.Helper.Tools
 			if (!File.Exists(outfile))
 			{
 				// Compress the input stream
-				FileStream inputStream = File.OpenRead(input);
+				FileStream inputStream = File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 				FileStream outputStream = File.Open(outfile, FileMode.Create, FileAccess.Write);
 
 				// Open the output file for writing
@@ -1796,7 +1796,7 @@ namespace SabreTools.Helper.Tools
 				else
 				{
 					// Open the old archive for reading
-					Stream oldZipFileStream = File.OpenRead(archiveFileName);
+					Stream oldZipFileStream = File.Open(archiveFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 					oldZipFile = new SevenZipExtractor(oldZipFileStream);
 
 					// Map all inputs to index
@@ -1831,7 +1831,7 @@ namespace SabreTools.Helper.Tools
 						ArchiveFormat = OutArchiveFormat.XZ,
 						CompressionLevel = SevenZip.CompressionLevel.Normal,
 					};
-					Stream zipFileStream = File.OpenWrite(tempFile);
+					Stream zipFileStream = File.Open(tempFile, FileMode.Open, FileAccess.Write, FileShare.ReadWrite);
 
 					// Get the order for the entries with the new file
 					List<string> keys = inputIndexMap.Keys.ToList();
diff --git a/SabreTools.Helper/Tools/FileTools.cs b/SabreTools.Helper/Tools/FileTools.cs
index f06043b1..f9f64fe6 100644
--- a/SabreTools.Helper/Tools/FileTools.cs
+++ b/SabreTools.Helper/Tools/FileTools.cs
@@ -221,7 +221,7 @@ namespace SabreTools.Helper.Tools
 				{
 					// Create the input and output streams
 					MemoryStream outputStream = new MemoryStream();
-					FileStream inputStream = File.OpenRead(input);
+					FileStream inputStream = File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 
 					// Transform the stream and get the information from it
 					rule.TransformStream(inputStream, outputStream, keepReadOpen: false, keepWriteOpen: true);
@@ -319,8 +319,8 @@ namespace SabreTools.Helper.Tools
 				return;
 			}
 
-			FileStream fsr = File.OpenRead(input);
-			FileStream fsw = File.OpenWrite(output);
+			FileStream fsr = File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+			FileStream fsw = File.Open(output, FileMode.Open, FileAccess.Write, FileShare.ReadWrite);
 
 			AppendBytesToStream(fsr, fsw, bytesToAddToHead, bytesToAddToTail);
 
@@ -381,7 +381,7 @@ namespace SabreTools.Helper.Tools
 
 			// Get the header bytes from the file first
 			string hstr = string.Empty;
-			BinaryReader br = new BinaryReader(File.OpenRead(file));
+			BinaryReader br = new BinaryReader(File.Open(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
 
 			// Extract the header as a string for the database
 			byte[] hbin = br.ReadBytes((int)rule.StartOffset);
diff --git a/SabreTools.Helper/Tools/Style.cs b/SabreTools.Helper/Tools/Style.cs
index b011d24a..0efc0db5 100644
--- a/SabreTools.Helper/Tools/Style.cs
+++ b/SabreTools.Helper/Tools/Style.cs
@@ -805,7 +805,7 @@ namespace SabreTools.Helper.Tools
 		{
 			// Read the BOM
 			var bom = new byte[4];
-			FileStream file = File.OpenRead(filename);
+			FileStream file = File.Open(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
 			file.Read(bom, 0, 4);
 			file.Dispose();