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Don't even try. The public Internet mail system is becoming increasingly locked down due to the massive problem of spam. The server may not even permit relaying from a non-mail process running on the same machine - this is the default configuration of Exchange Server 2003.
Instead you must come to an arrangement with your ISP as to which machines on your side of your connection are permitted to send mail, which machine(s) (typically named a Smart Host) they should send mail to, and how, if required, they should authenticate.
Before you start getting clever ideas about forming your own TCP packets to spoof your address, I'll point out that XP SP2 will not allow you to generate any TCP packets using the raw sockets interface.
Stability. What an interesting concept. -- Chris Maunder
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No, I am definitely not going try any "tricks" like packet mangling. Absolutely not! 
I am talking about an app that would act as sort of a local MUA that would hand off mail to a remote MTA. I have looked at a few open-source apps that already do this. I am just not ready to move my app onto a linux box as I have not yet ventured into Mono territory.
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http://support.microsoft.com/default.aspx?scid=kb;en-us;310273
http://blogs.x2line.com/al/articles/168.aspx
Does the trick nicely...
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Does anyone know how to have a flashing tray icon without using timers?
tia
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I dont know, thats why I'm asking 
thought there could be a more elegant solution, maybe an animated gif (flashing) used as icon.
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Hi
Basically at the moment I have some small opengl demos in c++. How can I make these display in a .net (1 or 2) control without having to rewrite it all in .net?
Thanks a lot
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hi buddies,
I am facing a big problem while usig Asynchronous socket communication for a simple server on chat application.
The problem is that, while sending message from server to client and from client to server the messages are breaking, ie intead of "Heloo how are u..". the client will reach the message as "Heloo ho" and "w are u..". Please help me with good solution to avoid this.
the code is just like http://www.codeproject.com/csharp/socketsincs.asp
please help me.......;P 
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Is there a way that I can have VIM like movement for my coding in C#? I am using
Microsoft Visual C# .NET version 7.1 (I think?) on Windows 2003. Any help would be much appreciated!
Jim
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I will try to keep this question short and simple in compliance with codeproject standards. When working with MdiParent, I need to add some controls to the MdiParent. Then when displaying the MdiChild form, those controls on the MdiParent display in front of the MdiChild rather than properly being covered by the MdiChild.
To duplicate the conditions of the question. Create a windows C# form, set the isMdiContainer property to true, create a menu for the C# windows form, and then add the following code to the menu click event. Add a lot of controls to the MdiParent form including a picture box, a combo box, a text box and a panel control. After that create another windows C# form as the MdiChild form.
Add this code to the menu click event:
<br />
protected void MDIChildNew_Click(object sender, System.EventArgs e)<br />
{<br />
Form2 newMDIChild = new Form2();<br />
newMDIChild.MdiParent = this;<br />
newMDIChild.Show();<br />
}<br />
Helpful link: http://msdn.microsoft.com
After duplicating this, run the application and click the menu event. Note that the MdiChild form is behind the MdiParent form controls including the picture box, the combo box, the text box and the panel control that were added. How do I correct this problem?
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Can someone point me in a direction on how to solve this problem?
I have to be able to find out if a file I am pointing to is local or not.
I can point to a file through the network neighborhood or through a networked drive. I think finding out if the file was accessed through the network neighborhood would not be a problem, its when I map a network drive. Once the drive is mapped, it is given a drive letter like any other local drive.
Help would be much appreciated.
PS.
This seems promising...
http://www.codeproject.com/csharp/mapnetdrive.asp[^]
My idea was to try to unmap the drive and if my attempt fails, the drive must be local. The problem is, that if I unmap a drive with a username:pw, I have to remap it with the same username:pw which I may not have.
For the network neighborhood,
Does checking the root of a file work?
ex.
\\NAME\c$
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One possible solution is to use the WIN32 API function GetDriveType.
By passing in the drive as a string, the function will return the drive type as shown below.
int nDriveType = GetDriveType("Z:\\");
if (nDriveType == DRIVE_REMOTE)
MessageBox(NULL, "Network Drive", "Network Drive", MB_OK | MB_ICONINFORMATION);
Hope this helps.
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Hello everyone,
I have installed Crystal Reports 9 additional to .Net 2003. Referencing to the newer items in the referenclist .net changes automaticly to the older .net parts of crystal reports engine, etc.
I tried to change the references externaly in the .csproj file but after loading the project the old configurations settings are set.
But using a sample project, all new references to crystal report components are correct.
Where are additional information placed to tell .net which references to use for ?
Thank You in advance
Frank
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has anyone seen any goood firewals in C#. frankly i havent seen a single firewall in .net. Is it possible t make one (does .net have the power?
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Yes, c# and all the .NET languages have the power. The question isn't whether .NET is capable, but whether it's appropriate. A poorly implemented firewall can be a bottle neck and a major security risk. First off, a firewall 'should' be hardware based whenever possible. Search on Google for a Java-based firewall; you won't find much. If you're really interested in how the sockets and communication works take a look at the Cassini web server source code. It'll get you on the right track in terms of working with ports.
Cassini Download
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okay....could anyone tel me the difference between grids,clusters, and parallel processing. suppose i were to have 5 normal pcs running windows xp...could i creat an application for parallel processing....is there an application in .net that demonstrates this
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hi all,
i want to make program that take from the user class name and it field then generate C# class like the one below
<br />
using System;<br />
<br />
namespace ProgrammingTask<br />
{ <br />
public class Trainee<br />
{<br />
#region Data members<br />
<br />
private string firstName, middleName, lastName;<br />
private DateTime birthdate;<br />
<br />
#endregion<br />
<br />
#region Constructors<br />
<br />
public Trainee()<br />
{<br />
}<br />
<br />
public Trainee(string fname, string mname, string lname, DateTime bdate)<br />
{<br />
firstName = fname; middleName = mname; lastName = lname;<br />
birthdate = bdate;<br />
}<br />
<br />
#endregion<br />
<br />
#region Properties<br />
<br />
public string FirstName<br />
{<br />
get<br />
{<br />
return firstName;<br />
}<br />
set<br />
{<br />
firstName = value;<br />
}<br />
}<br />
<br />
public string MiddleName<br />
{<br />
get<br />
{<br />
return middleName;<br />
}<br />
set<br />
{<br />
middleName = value;<br />
}<br />
}<br />
<br />
public string LastName<br />
{<br />
get<br />
{<br />
return LastName;<br />
}<br />
set<br />
{<br />
LastName = value;<br />
}<br />
}<br />
<br />
public DateTime Birthdate<br />
{<br />
get<br />
{<br />
return birthdate;<br />
}<br />
set<br />
{<br />
birthdate = value;<br />
}<br />
}<br />
<br />
#endregion<br />
}<br />
}<br />
<br />
so can anyone help me
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thanx for ur help
ill check this links and c
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Hello,
I am at the moment not so experienced with C# but I am learning.
I have the following problem.
On Form1 i have 1 textbox and 1 button. When I press the button it opens a send form (Form2).
There is also one button on Form2, when I press it, the value of the textbox on Form1 needs to change.
Is this possible?
I try to make textbox public but than i need a reference to the Form1 object.
This is ofcourse simplified representation of the problem i have.
If I do this on Form2:
Form1 form1 = new Form1();
form1.textbox.text = "test";
Nothing happens, and i suppose this is normal, because you create a new instance.
What i want to do is on Form2:
Form1.textbox.text = "test";
At compile I receive the following msg: An object reference is required for the nonstatic field, method or property.
I don't think that i have to make the textbox public static. I am a bit lost in this situation, is someone there who can halp me and clear things out.
Thanks
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