利用win2k系统的cdosys.dll库发送带附件的邮件之办法

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原创最新推荐文章于 2026-04-12 10:05:17 发布 1.6k 阅读 AI 写同款· GEO 优化 ›

如何在自己的电脑上安装cdo 如何在自己的电脑上安装cdo 前言：首先，强烈建议使用Linux操作系统进行cdo的安装，这样可以节省非常多的不必要的麻烦。一般课题组搭建的服务器上都会安装好cdo，直接配置好路径后就能在自己的帐号里进行使用。如果没有服务器的话，强烈建议在自己Windows系统的电脑上安装一个WSL-Linux子系统，具体安装方法直接去百度上搜索：Windows系统启用并安装linux子系统(WSL)教程，教程一大堆，这里不做赘述了。 1、有服务器，且服务器上安装了cdo 在你的服务器目录下找到.zshrc隐藏文件阅读详情

How to use the Cdosys.dll library to send an e-mail with attachments

View products that this article applies to.

This article was previously published under Q310212

SUMMARY

This article describes how to use the Collaboration Data Objects (CDO) for Windows 2000 library (Cdosys.dll) to send an e-mail message with attachments. You can send text or HTML or a Web page in the body of the e-mail message by using the local SMTP server or by using a smart host server in Microsoft Visual C# .NET.

Note The Cdosys.dll library is also known as CDOSYS.

MORE INFORMATION

To use CDOSYS as described in the "Summary" section, follow these steps:

Start Microsoft Visual Studio .NET.
On the File menu, click New, and then click Project.
Under Project Types, click Visual C# Projects, and then click Console Application under Templates. By default, Class1.cs is created.
Add a reference to the Microsoft CDO For Windows 2000 Library. To do this, follow these steps:
1. On the Project menu, click Add Reference.
2. On the COM tab, locate Microsoft CDO For Windows 2000 Library, and then click Select.
3. To accept your selections, click OK in the Add References dialog box.
  
  If you receive a dialog box to generate wrappers for the libraries that you selected, click Yes.

In the code window, replace all the code with the following code:

namespace CdoSys
{
	using System;
	class Class1
	{
		static void Main(string[] args)
		{
			try 
			{			
				CDO.Message oMsg = new CDO.Message();
				CDO.IConfiguration iConfg; 

				iConfg = oMsg.Configuration;

				ADODB.Fields oFields;
				oFields = iConfg.Fields;       

				// Set configuration.
				ADODB.Field oField = oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"];
                        
				//TODO: To send by using the smart host, uncomment the following lines:
				//oField.Value = CDO.CdoSendUsing.cdoSendUsingPort;
				//oField = oFields["http://schemas.microsoft.com/cdo/configuration/smtpserver"];
				//oField.Value = "smarthost";

				// TODO: To send by using local SMTP service. 
				//oField = oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"];
				//oField.Value = 1;  

				oFields.Update();

				// Set common properties from message.

				//TODO: To send text body, uncomment the following line: 
				//oMsg.TextBody = "Hello, how are you doing?";
			

				//TODO: To send HTML body, uncomment the following lines:
				//String sHtml;
				//sHtml = "<HTML>/n" + 
				//	"<HEAD>/n" +
				//	"<TITLE>Sample GIF</TITLE>/n" +
				//	"</HEAD>/n" +
				//	"<BODY><P>/n" + 
				//	"<h1><Font Color=Green>Inline graphics</Font></h1>/n" +
				//	"</BODY>/n" + 
				//	"</HTML>";
				//oMsg.HTMLBody = sHtml;

				//TOTO: To send WEb page in an e-mail, uncomment the following lines and make changes in TODO section.
				//TODO: Replace with your preferred Web page
				//oMsg.CreateMHTMLBody("http://www.microsoft.com",
				//	CDO.CdoMHTMLFlags.cdoSuppressNone, 
				//	"", ""); 
				oMsg.Subject = "Test SMTP";  

				//TODO: Change the To and From address to reflect your information.                       
				oMsg.From = "someone@example.com";
				oMsg.To = "someone@example.com";
				//ADD attachment.
				//TODO: Change the path to the file that you want to attach.
				oMsg.AddAttachment("C://Hello.txt", "", "");
				oMsg.AddAttachment("C://Test.doc", "", "");
                                    oMsg.Send();
			}
			catch (Exception e)
			{
				Console.WriteLine("{0} Exception caught.", e);
			}
			return;
		}
	}
}