在用CDO发邮件时，报找不到指定的模块

Question

在用CDO发邮件时，报找不到指定的模块，如何解决啊，急啊！！在线等代码如下Configuration conf=new ConfigurationClass(); //断点此处就报错了 　　找不到指定的模块
conf.Fields[CdoConfiguration.cdoSendUsingMethod].Value=CdoSendUsing.cdoSendUsingPort;  
conf.Fields[CdoConfiguration.cdoSMTPServer].Value="1.1.1.1"; 
conf.Fields[CdoConfiguration.cdoSMTPServerPort].Value=25; 
conf.Fields[CdoConfiguration.cdoSMTPAuthenticate].Value=CdoProtocolsAuthentication.cdoBasic; 
conf.Fields[CdoConfiguration.cdoSendUserName].Value="AA";  
conf.Fields[CdoConfiguration.cdoSendPassword].Value="AA";   conf.Fields.Update();  
msg=new MessageClass();  
msg.Configuration=conf;  
msg.Charset="Utf-8"; 
msg.To="[email protected]";
msg.Subject="Personnel Info!";  
msg.TextBody="AAA";
msg.From="[email protected]"
msg.Send();