GOOD NEWS FOR ALL WINDOWS MOBILE USER ! 
Brief intro :Most of you guys heard of NetCF 1.0 / 2.0 / 3.5 right?. For those who are not sure here is the brief about it;
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The Microsoft .NET Compact Framework (.NET CF) is a version of the .NET Framework that is designed to run on Windows CE based mobile/embedded devices such as PDAs, mobile phones, factory controllers, set-top boxes, etc. The .NET Compact Framework uses some of the same class libraries as the full .NET Framework and also a few libraries designed specifically for mobile devices such as Windows CE InputPanel.
It is possible to develop applications which use the .NET Compact Framework in Visual Studio.NET 2003, in Visual Studio 2005 and in Visual Studio 2008, in C# or Visual Basic.NET. The resulting applications are designed to run on a special, mobile-device, high performance JIT compiler.
To be able to run applications powered by the .NET Compact Framework, the platform must support the Microsoft .NET Compact Framework runtime. Some operating systems which do include .NET CF are Windows CE 4.1, Microsoft Pocket PC, Microsoft Pocket PC 2002 and Smartphone 2003. .NET Compact Framework applications can be run on desktop computers with the full .NET Framework as long as they only access the shared parts of both frameworks, though their user interface can not be upgraded to look like that of an application developed for desktop PCs.
The Microsoft® .NET Compact Framework 3.5 Redistributable contains the common language runtime and class libraries built for the .NET Compact Framework. In addition to version 3.5 support, it also supports applications developed for version 1.0 and 2.0. The .NET Compact Framework 3.5 provides new features such as Windows Communication Foundation, LINQ, SoundPlayer, new runtime tool support, and many other features.
A version of the .NET Compact Framework is also available for the Xbox 360 console. While it features the same runtime as the regular .NET CF, only a subset of the class library is available.[1] This version is used by XNA Framework to run managed games on the console. There are other limitations as well, such as the number of threads being limited to 256.[2] Unlike other versions of .NET CF, the Xbox 360 version allows setting processor affinity to threads created.[3] The threads are scheduled among four concurrent threads running on the multiple processor cores of the system.[2]
You'll be aware that it offers a number of enhancements in features, stability and performance, and you'll likely also know that it provides full backwards compatability with previous versions of the Compact Framework. What you may NOT know is that when CF 3.5 is installed on a device, applications that target previous versions of the Compact Framework will continue to run against the old versions, and 3.5 and previous versions will live side by side on the device. Only when new devices come along will we see ONLY 3.5 on a device.
source : wikipedia
Most of the cooked rom is cooked in with this netCF3.5 so you guys must be asking.....so what are the benefit of NetCF 3.5? Read here;
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New Features Included in the netCF 3.5 January CTP:
• System.IO.Compression support, including support for HTTP compression.
• Support for a subset of Linq’s Standard Query Operators.
• SoundPlayer support using WaveOut allowing for multiple sounds to play at once.
• New API in Microsoft.WindowsCE.Forms for easily distinguishing Smartphone and Pocket PC.
• Allow Nested FuncEval's.
• Enhanced logging for interop functionality with native code.
• Stack Trace Enhancements.
• GAC Improvements.
• Allow for StrongName keys greater than 1024 long.
• To improved logging of finalizer activities to enhance product supportability.
• Allow log files to be read at runtime.
source : .NET Compact Framework Team
For your info, most of WM's stock rom is using netCF2.0 !
That's why those who are using cooked rom noticed the overall speed and performance gained over the stock rom. By just installing netCF 3.5 over stock rom
WILL NOT gain any benefit out of it because this will not override the default netCF2.0 in the system. It's just merely reside in the system and let you install netCF3.5 written application to be install in your device e.g Auto Configurations Tools 3.2 etc etc .......
You need to 'instruct/tell' your system to use this netCF3.5 to really unleash it power! That's what this tweak is all about.
All you need is only 'this' little tool to the job and of course the netCF3.5 file, that's it ! Both are made in cab file for easy installation. Just copy both file to your device and install from your device.
No hard reset / soft reset required !! and good news is this will not do any harm to your system
YOU WILL ENJOY 'CLOSE' TO THE SPEED AND PERFORMANCE OF COOKED ROM WITHOUT NEED TO FLASH ONE! Here's the file you need;» Click to show Spoiler - click again to hide... «
NetCF 3.5 in cab - download
HERENetCF Tool in cab - download
HEREInstruction;
1. Copy both file to your storage card and run/install it from your device.
2. Open the NetCF Tool > Device Policy > select NetCF 3.5.7283 from the drop down menu and click apply.
That's it!
Here's some screenshot;
Compatible Devices:Basically all Windows Mobile devices. This has been tested on WM6/WM6.1. VGA/QVGA compatible!
Credits goes to Microsoft NetCF Team, LYN, Google, fellows Touch Pro's owner and bro Baronic whom tested this earlier. I'm just a compiler for this little tweak 
DonationsPlease donate your feedback in this forum by using the following format;
Device :
[ HTC Touch Pro ] ROM :
[ 1.90.707.4 WWE / Stock ROM / WM6.1 ]Your Feedback :
Pls remember to share your feedback, doesn't matter whether it's good or bad. This will be helpful to this community.Thank you and enjoy!
This post has been edited by old newspaper: Oct 15 2008, 08:07 AM 
Oct 14 2008, 04:49 PM, updated 17y ago
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mind to share what device and rom you guys using as references here? thanks 
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