diff --git a/WfcReplay/Program.cs b/WfcReplay/Program.cs
index e5ad372..9222370 100644
--- a/WfcReplay/Program.cs
+++ b/WfcReplay/Program.cs
@@ -131,7 +131,7 @@ namespace WfcReplay
 			}
 			catch
 			{
-				throw new IOException("Could not write file to disk.");
+				throw new IOException("Could not write file to disk ("+fileName+").");
 			}
 			finally
 			{
@@ -380,8 +380,8 @@ namespace WfcReplay
 		void decryptBlz(ref MemoryStream file, string fileName)
 		{
 			writeTempFile(fileName, file);
-
-			ProcessStartInfo psi = new ProcessStartInfo("blz.exe",  "-d " + "\"" + tempFolderPath + fileName + "\"");
+			string blzexe = (System.IO.Path.DirectorySeparatorChar == '/') ? "blz" : "blz.exe";
+			ProcessStartInfo psi = new ProcessStartInfo(blzexe,  "-d " + "\"" + tempFolderPath + fileName + "\"");
 			psi.WorkingDirectory = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
 			psi.WindowStyle = ProcessWindowStyle.Hidden;
 			Process blz = Process.Start(psi);
diff --git a/WfcReplay/WfcReplay.csproj b/WfcReplay/WfcReplay.csproj
index 663a446..a997853 100644
--- a/WfcReplay/WfcReplay.csproj
+++ b/WfcReplay/WfcReplay.csproj
@@ -48,12 +48,6 @@
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>
-    <PreBuildEvent>if "$(ConfigurationName)" == "Release" del /Q $(TargetDir)*
-copy $(SolutionDir)BLZ\* $(TargetDir)*
-rename $(TargetDir)license.txt blz_license.txt
-copy $(SolutionDir)readme.md $(TargetDir)readme.txt
-copy $(SolutionDir)changelog.md $(TargetDir)changelog.txt
-copy $(SolutionDir)license.txt $(TargetDir)license.txt</PreBuildEvent>
   </PropertyGroup>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
@@ -62,4 +56,4 @@ copy $(SolutionDir)license.txt $(TargetDir)license.txt</PreBuildEvent>
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
\ No newline at end of file
+</Project>