The .NET Compact Framework team has been working on a service pack for .NET Compact Framework 2.0. The fixes and features included in this beta have been driven through customer feedback we receive through the Product Feedback Center (http://lab.msdn.microsoft.com/productfeedback ), Newsgroups and Forum posts. To get started using .NET Compact Framework 2.0 SP1 beta download it from : http://www.microsoft.com/downloads/details.aspx?FamilyID= 6548dd53-a418-42d9-a481-19ba3ceca1a6&displaylang=en Below is a raw list of features and bug fixes. === New Features === -Support for WinCE 4.2. For more information see Richard Greenberg's BLOG : http://blogs.msdn.com/rgreenberg/archive/2005/11/29/498105.aspx -Allow GAC to be installed to Storage Card. -Allow DataGrid cell drawing to be overridden. -Enable .NET Framework SDK Debugging via MDBG. -Include Network Log Viewer. -Include .NET Compact Framework Remote Performance Monitor. For more information see Steven Pratschner's BLOG : http://blogs.msdn.com/markprenticems/archive/2006/02/17/534274.aspx -Support Headless WinCE 5.0 Devices. For more information see Mark Prentice's BLOG. -Add the [Serializable] attribute to better facilitate serialization extensibility and code portability. === Bug Fixes === -Access violation accessing .Controls or .Controls.Count property of a control once it has begun the disposing process. -AppCompat - MS Pocket Expense Logon Screen disappears before you can logon. -Breakpoints don't work if the "cached" managed dlls in "bcl" directory differ from the ones on the device. -Can't get CF 2.0 to install on Wizard (Cab Install failure on low memory device). -Close button doesn't terminate the netcflaunch.exe process. -COM Interop: VARIANT_BOOL is passed incorrectly on ARMV4I. -Compact framework 2.0 Debug.WriteLine not functioning. -DataGrid formatting support. -DateTime.Now throws ArgumentOutOfRangeException. -Error getting v2 on device via ActiveSync push. -FileStream finalizer will cause app crash, if previous IO operation failed. -Fix Com marshaling memory leaks. -Http Abort semantics fixes. -HttpWebRequest over SSL with payload over 32K hangs on the client when SendChunked is false. -HttpWebRequest: ArgumentOutOfRangeException on accessing https://www.cybertrust.com . -HttpWebRequest: NullReferenceException on multithreaded WebRequest scenario with abort. -HttpWebRequest: Uncatchable ObjectDisposedException on exiting app with asynchronous requests. -icordbg av when exception occurs when native thread calling back into managed code generates an exception. -icordbg: Remove RemoteDeviceConnection10 / RemoteDevicePort10 / TransportStream10 classes. -Implementation of BindingList class is obsolete (about 6 months old), prevents major data binding scenarios from working. -Installer should check for ActiveSync version and disable deployment if prior to AS 4.0 build 4343. -Magneto PPC requires cabs built with new version of Cabwiz to eliminate "... previous version..." warning message. -MIPS JIT can't handle branches to destinations farther than 256mb away. -PInvoke return types of UIntPtr throw a NotSupportedException. -Regular Expression that worked in 1.1 doesn't work in 2.0 . -ResourceManager.CreateFileBasedResourceManager() throws ArgumentException when the base name ends with ".resources"; Desktop doesn't. -SerialPort: IOException is thrown on opening serial port on IPAQ 4150. -SerialPort: Uncatchable exception when Bluetooth is turned off. -SerialPort: Virtual serial ports are not reported in SerialPort.GetPortNames() . -Sometimes a p/invoke call that uses the Win32 FindWindow function to get a .NET CF Window’s window handle will fail. -SP1 - Changing VT_BYREF Variants in Managed Code Can Lead to a Memory Leak. -Submitting batch update throws NullReferenceException w/ OutputParameters and multiple batches of updates.