Framework 3.5 linq rocks inside .NET 2.0

Today i have tested the Visual Studio Orcas CTP and I found the linq feature is really cool. I did some testing whereby i tried to create a class which uses some linq features. I compiled it with the framework 3.5 and finally i tried to reference it in my Visual Studio 2005. Guess what i managed to call the assembly compiled in framework 3.5 inside my framework 2.0 project. Therefore, this concluded that i could create my signed business logic classes using linq.

Great job!

SQL Server 2005 Compact Edition - Internal Error: Invalid reconciler parameter

If you are experiencing this error "Internal Error: Invalid reconciler parameter" when you are doing merge replication or sync stuffs, don't worry because the error is due to the directory path is too long to be supported in .NET, therefore you need to copy your solution folder and paste it to C:\ for instance so that the directory path could be recognized by .NET.

For more detail explanation, please go to
http://pluralsight.com/blogs/jimw/archive/2006/06/18/28427.aspx

SQL Server 2005 Compact Edition Tutorial

Developing mobile application never been so easier with Visual Studio 2005. The SQL Server 2005 Compact Edition also comes with free. With a lot of support, there is no reason that I want to get started with my own written mobile application. To learn more about the SQL Server 2005 Compact Edition, please visit the http://msdn2.microsoft.com/en-us/sql/bb219480.aspx to quickly get started the tutorials to experience the most advance features.

N Computing vs Personal Computing - my point of view

My company recently have a plan to improve existing IT infrastructure by replacing those old PCs so that our staffs could be happier and more productive. However, my manager was asking me to give him some advice and recommendation of it and he also did suggest me about the N Computing solution (http://www.ncomputing.com/). I was very impress with the technology because it could save us tons of money off from buying "duplicated" hardware and software licences.

After i had done my researches and I found that the device is not as cheap as i thought. In the US it is sold at USD50 per device however in Malaysia, it is sold at USD162. NComputing in Malaysia pricing is so ridiculous and unreasonable since today computing is so cheap that i could built a PC with a 2.8GHz processor, motherboard V+L+S, 512 RAM, DVDRW drive and casing (a PC really need a protection), which cost me at USD151 only. That is US10 cheaper and I could get a real computer rather that just a simple station box. I could upgrade my PC over time with more functionality but I have limited or no upgradable ability with the NComputing station box.

Are you wondering how i could built the PC so cheap? The reason is the PC has no hard disk inside because i want to compare between "Apple X" and "Apple Y". The concept of using N computing is to connect the station box (client) with the host (server) in multi-user session scenario using a network connection. However it also can be done by a PC without a hard disk since I could use a open source Linux OS distribution such as KNOPPIX (http://www.knopper.com/) to be loaded by just a CD or DVD!. Inside the distribution DVD, it comes with plenty of useful software including Open Office 2.1 and a FireFox Internet browser. In this case I could remote access to my Windows Server 2003 host which supports multi-concurrent user via the Internet browser. Therefore, I have no problem running Windows application such as Ms Office 2007.

As my conclusion, I would consider the station box if it is less than US50 else it should be an obsolete technology if the cost of making it is too high. Since today computing is so cheap, in which an unused CPU resources could be used as distributed computing purposes but not the station box.

Extreme Programming Part 1 - Introduction

Extreme programming or XP is a software development methodology that aim to improve software development productivity, reduce risk and cost. The main focus is to develop software in incrementally, rapid prototyping and communicate frequently that lead to accept requirement changes frequently ( most programmers hate it) and However XP doesn't work for all scenario specially for mission critical system and large system because those system normally needs highly formal specification whereas XP programming is just the opposite.

The main challenge of XP is real fun because you need to do everything yourself and you will deal with customers frequently and communicate with your peers frequently. You got to work out with a prototype very fast an usually you need a code generator to generate the whole application for you. Eg. Iron Speed http://www.ironspeed.com/ does the job. You got to test it and evaluate it for whatever reason to meet the requirements. XP is great if you have a small team around 2-6 people.

To be continued...

Concurrent Remote Desktop Sessions in Windows XP SP2

Since Windows XP does not allow multiple concurrent access at the same time using the remote desktop server, however here the link to workaround with.

As for me i applied the terminal server patch (Please follow the link to download the patch below) to the Windows XP pro and i works after restarted. However you need to do one extra step in order you can remote the client user.

Here the extra step

Go to Control Panel > Administrative Tools > Computer Management > Local User and Groups > right click the selected user (create a new user if you want) > properties > Member Of > Add > Advance > Find now > Choose Remote Desktop User > Click Apply and finally OK.

You migh need to change to different port by editing HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp\PortNumber

Now you have successfully turn your Windows XP pro into a terminal server which could support multi concurrent user using Remote Desktop.

Cheers!

http://sig9.com/articles/concurrent-remote-desktop

http://www.kood.org/terminal-server-patch/ (Recommended)

http://riccardo.raneri.it/blog/eng/index.php/2006/04/24/windows-xp-multiuser-remote-desktop/

http://www.golod.com/2005/10/enabling-multiple-remote-desktop-sessions-in-windows-xp-professional-and-media-center-edition-2005/

Get ready with your ASP.NET app using ADAM Membership using ActiveDirectoryMembershipProvider Class

If you want to manage storage of membership information for an ASP.NET application in Active Directory and Active Directory Application Mode servers, you need to do these thing:

1. Install ADAM. Download ADAM from http://www.microsoft.com/downloads/details.aspx?FamilyId=9688F8B9-1034-4EF6-A3E5-2A2A57B5C8E4&displaylang=en
2. Install into your Windows Server 2003 (recommended).
3. After the installation you need to follow this tutorial presented here. [Download Pdf]
4. You need to configure web.config, please follow the http://msdn2.microsoft.com/en-us/library/system.web.security.activedirectorymembershipprovider(VS.80).aspx
5. That's it and you are ready to test drive!

Have you encountered this error before?

Unable to establish secure connection with the server using SSL

The reason is because you did not follow my tutorial. :)