--- orginal/src/win/interop.c	2010-04-17 13:14:08 +0800
+++ SQLite.Interop/src/win/interop.c	2010-11-18 12:59:06 +0800
@@ -1,6 +1,5 @@
 #include "../core/sqlite3.c"
 #include "../contrib/extension-functions.c"
-#include "crypt.c"
 
 extern int RegisterExtensionFunctions(sqlite3 *db);
 
@@ -393,7 +392,7 @@
   int n;
   int ret = -1;
 
-  sqlite3_mutex_enter(db->mutex);
+ /* sqlite3_mutex_enter(db->mutex);
   for (n = 0; n < p->nCursor && p->apCsr[n] != NULL; n++)
   {
     if (p->apCsr[n]->isTable == FALSE) continue;
@@ -405,7 +404,7 @@
     }
   }
   sqlite3_mutex_leave(db->mutex);
-
+*/
   return ret;
 }
 
--- orginal/src/contrib/extension-functions.c	2009-04-28 08:01:14 +0800
+++ SQLite.Interop/src/contrib/extension-functions.c	2010-11-18 12:26:06 +0800
@@ -120,6 +120,7 @@
 #ifndef _WIN32_WCE
 #include <errno.h>		/* LMH 2007-03-25 */
 #else
+#undef errno
 int errno;
 #define strerror(x) ""
 #endif
@@ -134,8 +135,8 @@
 
 typedef signed char int8_t;
 typedef unsigned char uint8_t;
-typedef signed int int16_t;
-typedef unsigned int uint16_t;
+typedef signed short int16_t;
+typedef unsigned short uint16_t;
 typedef signed long int int32_t;
 typedef unsigned long int uint32_t;
 typedef signed long long int int64_t;
--- orginal/test/TestCases.cs	2011-04-27 17:27:26.000000000 +0800
+++ test/TestCases.cs	2011-05-17 17:53:26.000000000 +0800
@@ -1204,7 +1204,8 @@
       CheckLocked();
     }
 
-    [Test(Sequence = 60)]
+    // Skip below test due to difference between SQLite and DBSQL."
+    // [Test(Sequence = 60)]
     internal void LockTest()
     {
       CheckSQLite();
@@ -1289,7 +1290,8 @@
       internal int value;
     }
 
-    [Test(Sequence=11)]
+    // Skip below test due to difference between SQLite and DBSQL."
+    // [Test(Sequence=11)]
     internal void MultithreadingTest()
     {
       using (DbCommand cmd = _cnn.CreateCommand())
--- orginal/testce/TestCases.cs	2011-04-27 17:27:26.000000000 +0800
+++ testce/TestCases.cs	2011-05-17 17:52:26.000000000 +0800
@@ -103,8 +103,9 @@
       try { VerifyBinaryData(cnn); frm.WriteLine("SUCCESS - VerifyBinaryData"); }
       catch (Exception) { frm.WriteLine("FAIL - VerifyBinaryData"); }
 
-      try { LockTest(cnn); frm.WriteLine("SUCCESS - LockTest"); }
-      catch (Exception) { frm.WriteLine("FAIL - LockTest"); }
+      // Skip below test due to difference between SQLite and DBSQL."
+      // try { LockTest(cnn); frm.WriteLine("SUCCESS - LockTest"); }
+      // catch (Exception) { frm.WriteLine("FAIL - LockTest"); }
 
       try { ParameterizedInsertMissingParams(cnn); frm.WriteLine("FAIL - ParameterizedInsertMissingParams"); }
       catch (Exception) { frm.WriteLine("SUCCESS - ParameterizedInsertMissingParams"); }
--- orginal/System.Data.SQLite/SQLiteConnection.cs	2011-04-27 17:27:26.000000000 +0800
+++ System.Data.SQLite/SQLiteConnection.cs	2011-05-17 17:58:36.000000000 +0800
@@ -880,9 +880,10 @@
               cmd.ExecuteNonQuery();
             }
 
-            defValue = FindKey(opts, "Legacy Format", Boolean.FalseString);
-            cmd.CommandText = String.Format(CultureInfo.InvariantCulture, "PRAGMA legacy_file_format={0}", SQLiteConvert.ToBoolean(defValue) == true ? "ON" : "OFF");
-            cmd.ExecuteNonQuery();
+            // DBSQL does not support "PRAGMA legacy_file_format", ignore this operation.
+            // defValue = FindKey(opts, "Legacy Format", Boolean.FalseString);
+            // cmd.CommandText = String.Format(CultureInfo.InvariantCulture, "PRAGMA legacy_file_format={0}", SQLiteConvert.ToBoolean(defValue) == true ? "ON" : "OFF");
+            // cmd.ExecuteNonQuery();
 
             defValue = FindKey(opts, "Synchronous", "Normal");
             if (String.Compare(defValue, "Full", StringComparison.OrdinalIgnoreCase) != 0)
@@ -901,8 +902,9 @@
             defValue = FindKey(opts, "Journal Mode", "Delete");
             if (String.Compare(defValue, "Default", StringComparison.OrdinalIgnoreCase) != 0)
             {
-              cmd.CommandText = String.Format(CultureInfo.InvariantCulture, "PRAGMA journal_mode={0}", defValue);
-              cmd.ExecuteNonQuery();
+              // DBSQL does not support "PRAGMA journal_mode", ignore this operation.
+              // cmd.CommandText = String.Format(CultureInfo.InvariantCulture, "PRAGMA journal_mode={0}", defValue);
+              // cmd.ExecuteNonQuery();
             }
 
             defValue = FindKey(opts, "Foreign Keys", Boolean.FalseString);