how to access remort desktop through windows application using c#.
Please give solution

Simple;

Step 1) Create a blank RDP session using MSTSC and save it to your desktop.

Step 2) Open the RDP file in NOTEPAD.

Step 3) What you see are all the parms. that are contained in an RDP file.

Step 4) Copy all of these parms and put them into a Resource string in your project.

Step 5) Create an GUI application that allows you to pick the server and which shows the username to connect

Step 6)Use string.Replace(this, that) to plug the values you want.

Step 7) Save the file out as an type of RDP file (extension is "RDP"). It will have new values.

Step 8) Start a process and use that file name in the startinfo parameter of the process.

Step 9) Start the process....the operating system takes care of the rest

Here's the parms in a RDP file:

screen mode id:i:2

desktopwidth:i:640

desktopheight:i:400

session bpp:i:32

winposstr:s:0,1,97,56,1210,710

full address:s:.xxx

compression:i:1

keyboardhook:i:2

audiomode:i:0

redirectprinters:i:0

redirectcomports:i:0

redirectsmartcards:i:1

redirectclipboard:i:1

redirectposdevices:i:0

displayconnectionbar:i:1

autoreconnection enabled:i:1

authentication level:i:0

prompt for credentials:i:0

negotiate security layer:i:1

remoteapplicationmode:i:0

alternate shell:s:

shell working directory:s:

disable wallpaper:i:0

disable full window drag:i:0

allow desktop composition:i:1

allow font smoothing:i:1

disable menu anims:i:0

disable themes:i:0

disable cursor setting:i:0

bitmapcachepersistenable:i:1

gatewayhostname:s:

gatewayusagemethod:i:0

gatewaycredentialssource:i:4

gatewayprofileusagemethod:i:0

drivestoredirect:s:

promptcredentialonce:i:1

username:s:.yyy

***** Some good TIPS to get Auto-Remote desktop work with your .Net 2.0 + frameworks... Read On...

You can either use either RDP Client or mstsc.exe to log onto remote desktops.

1. Look up for the RdpClient.dll in your system32 folder (This wraps itself in an active X component & derives from AxHost) �Easier one �See the example of “Palantir�/strong> �Good & easy one (This needs to be done on a windows forms) on Code Project…or Just google it.
2. The tricky one is directly logging in using mstsc directly (without typing in the username & password all the time). How do you achieve this ? Well, after quite a lot of R & D.. I came up with this.
3. When you Run “mstsc.exe� it would pop up with a dialog, go to >>Options( Do all that you want there) & then click �strong>Save As �. it would then be stored as “Default.rdp�
4. Open this “Default.rdp�in notepad…You would get the idea.. You are half way through .
5. The username is stored as is.
   
6. The password is encrypted using a special algorithm and stored in this RDP file as range of 1329 bits .(“Password01�or “Passowrduehw03�are going to be encrypted into the same range of 1329 bits but will differ in individual bit values.
7. The challenge here is to encrypt it, you have to apply the same algorithm as internally must be done by remote client while making an RDP file�/span>

In the code, simply get the user details(say from a Windows forms user log on form- One time & store it in Application Settings ).. Encrypt the password by UTF8-ENCODING (Not anything else) .Save it into an RDP file, say “Remotemachine.rdp�. Start the Process, give the Process instances “StartInfo.Arguments�/span> as path to this rdp file & �/strong> StartInfo.FileName�as �systemroot%\system32\mstsc.exe� Start the Process…it would connect to the respective remote machine and decrypt the password by itself.(You have to send the encrypted bits like: