Fixed wrong location for old twain_32.dll.

NTwain/Internals/WrappedManualResetEvent.cs

@@ -8,36 +8,36 @@ namespace NTwain.Internals
 
     class WrappedManualResetEvent : IDisposable
     {
-#if NET4
-        ManualResetEventSlim _slim;
-#else
+#if NET35
         ManualResetEvent _mre;
+#else
+        ManualResetEventSlim _slim;
 #endif
 
         public WrappedManualResetEvent()
         {
-#if NET4
-            _slim = new ManualResetEventSlim();
-#else
+#if NET35
             _mre = new ManualResetEvent(false);
+#else
+            _slim = new ManualResetEventSlim();
 #endif
         }
 
         public void Wait()
         {
-#if NET4
-            _slim.Wait();
-#else
+#if NET35
             _mre.WaitOne();
+#else
+            _slim.Wait();
 #endif
         }
 
         public void Set()
         {
-#if NET4
-            _slim.Set();
-#else
+#if NET35
             _mre.Set();
+#else
+            _slim.Set();
 #endif
         }
 
@@ -45,10 +45,10 @@ namespace NTwain.Internals
 
         public void Dispose()
         {
-#if NET4
-            _slim.Dispose();
-#else
+#if NET35
             _mre.Close();
+#else
+            _slim.Dispose();
 #endif
         }
 

NTwain/PlatformInfo.cs

@@ -34,7 +34,11 @@ namespace NTwain
             if (IsWindows)
             {
                 var newDsmPath = Path.Combine(Environment.SystemDirectory, Dsm.WIN_NEW_DSM_NAME);
-                var oldDsmPath = Path.Combine(Environment.SystemDirectory, Dsm.WIN_OLD_DSM_NAME);
+#if NET35
+                var oldDsmPath = Path.Combine(Environment.GetEnvironmentVariable("windir"), Dsm.WIN_OLD_DSM_NAME);
+#else
+                var oldDsmPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Windows), Dsm.WIN_OLD_DSM_NAME);
+#endif
 
                 if (IsApp64Bit)
                 {

NTwain/Properties/VersionInfo.cs

@@ -23,7 +23,7 @@ namespace NTwain
         /// <summary>
         /// The build release version number.
         /// </summary>
-        public const string Build = "3.2.1"; // change this for each nuget release
+        public const string Build = "3.2.3"; // change this for each nuget release
 
 
     }