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            &nbsp&nbsp　　３、获取默认的拨号连接的名称 <br>
            &nbsp&nbsp　　　　默认的拨号连接，即用户在浏览器中设置的拨号连接，该连接可以认为是用户最常用拨号连接． <br>
            &nbsp&nbsp　　　　在注册表的HKEY_USERS\.Default\RemoteAccess位置，有一个字符串名Profile，它对应字符值即为HKEY_USERS\.Default\RemoteAccess\Addresses． 
            <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp二、新建拨号连接、修改拨号连接的属性 <br>
            &nbsp&nbsp　　RasAPI函数RasCreatePhonebookEntry、RasEditPhonebookEntry通过调用Win9X的 
            <br>
            &nbsp&nbsp新建拨号连接、修改拨号连接的设置界面，允许用户新建拨号连接、修改拨号连接，具体的设置操作还要由系统来完成． <br>
            &nbsp&nbsp　　１、新建拨号连接 <br>
            &nbsp&nbsp　　　　新建拨号连接的RasAPI函数为RasCreatePhonebookEntry，其函数原型为： <br>
            &nbsp&nbspfunction RasCreatePhonebookEntry( <br>
            &nbsp&nbsphwnd : THandle; //新建拨号连接窗口的父窗口的句柄，为NIL表示桌面(DeskTop) <br>
            &nbsp&nbsplpszPhonebook: pchar//电话本名称,在Win9X下无作用,可为空字符串 <br>
            &nbsp&nbsp) : DWORD;stdcall; <br>
            &nbsp&nbspfunction RasCreatePhonebookEntry;external RasApiDll name 
            'RasCreatePhonebookEntryA'; <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp　　　　函数返回值为0表示执行成功；否则为错误代码． <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp　　　　下面是一个应用例子，允许用户新建一个拨号连接． <br>
            &nbsp&nbspvar <br>
            &nbsp&nbspdwResult : DWORD; <br>
            &nbsp&nbspbegin <br>
            &nbsp&nbsp//在当前窗口中新建拨号连接 <br>
            &nbsp&nbspdwResult := RasCreatePhonebookEntry( handle, '' ); <br>
            &nbsp&nbspif dwResult = 0 then <br>
            &nbsp&nbspmemo1.lines.add('新建拨号连接成功!') <br>
            &nbsp&nbspelse <br>
            &nbsp&nbspmemo1.lines.add('新建拨号连接失败：!' + GetRasError( dwResult )) 
            <br>
            &nbsp&nbspend; <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp　　２、修改拨号连接的属性 <br>
            &nbsp&nbsp　　　　修改拨号连接的属性的RasAPI函数为RasEditPhonebookEntry，其函数原型为： <br>
            &nbsp&nbspfunction RasEditPhonebookEntry( <br>
            &nbsp&nbsphwnd : THandle; //新建拨号连接窗口的父窗口的句柄，为NIL表示桌面(DeskTop) <br>
            &nbsp&nbsplpszPhonebook: pchar;//电话本名称，在Win9X下无作用,可为空字符串 <br>
            &nbsp&nbsplpszEntryName: pchar//拨号连接的名称，如'163'、'169'等 <br>
            &nbsp&nbsp) : DWORD; stdcall; <br>
            &nbsp&nbspfunction RasEditPhonebookEntry;external RasApiDll name 'RasEditPhonebookEntryA'; 
            <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp　　　　函数返回值为0表示执行成功；否则为错误代码． <br>
            &nbsp&nbsp　　　　下面是一个应用例子，允许用户修改指定拨号连接的属性． <br>
            &nbsp&nbspvar <br>
            &nbsp&nbspdwResult : DWORD; <br>
            &nbsp&nbspbegin <br>
            &nbsp&nbsp//在当前窗口中修改拨号连接的属性 <br>
            &nbsp&nbspdwResult := RasEditPhonebookEntry( handle, '', '163' ); 
            <br>
            &nbsp&nbspif dwResult = 0 then <br>
            &nbsp&nbspmemo1.lines.add('修改拨号连接成功!') <br>
            &nbsp&nbspelse <br>
            &nbsp&nbspmemo1.lines.add('修改拨号连接失败：!' + GetRasError( dwResult )) 
            <br>
            &nbsp&nbspend; <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp三、获取和设置拨号连接的拨号参数 <br>
            &nbsp&nbsp　　用RasAPI函数RasGetEntryDialParams、RasSetEntryDialParams可以直接获取和设置指定拨号连接的拨号参数，其中包括用户名称和用户密码！ 
            <br>
            &nbsp&nbsp　　１、获取拨号连接的拨号参数 <br>
            &nbsp&nbsp　　　　获取拨号连接的拨号参数RasAPI函数为RasGetEntryDialParams，其函数原型为： <br>
            &nbsp&nbspfunction RasGetEntryDialParams( <br>
            &nbsp&nbsplpszPhonebook: pchar;//电话本名称，在Win9X下无作用,可为空字符串 <br>
            &nbsp&nbsppRASDIALPARAMS:LPRASDIALPARAMS;//拨号参数，是一个RASDIALPARAMS类型的指针 
            <br>
            &nbsp&nbspvar lpfPassword : WordBool//是否需要用户密码 <br>
            &nbsp&nbsp) : DWORD; stdcall; <br>
            &nbsp&nbspfunction RasGetEntryDialParams;external RasApiDll name 'RasGetEntryDialParamsA'; 
            <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp参数pRASDIALPARAMS是一个RASDIALPARAMS类型的指针，指向一个拨号连接的拨号参数数据 的缓冲区，其中RASDIALPARAMS及LPRASDIALPARAMS的类型说明如下： 
            <br>
            &nbsp&nbspLPRASDIALPARAMS = ^RASDIALPARAMS; <br>
            &nbsp&nbspRASDIALPARAMS = record <br>
            &nbsp&nbspdwSize : DWORD;//该结构所占内存的大小(Bytes),一般设置为SizeOf(RASDIALPARAMS) 
            <br>
            &nbsp&nbspszEntryName : array[0..RAS_MaxEntryName] of char;//拨号连接名称 
            <br>
            &nbsp&nbspszPhoneNumber : array[0..RAS_MaxPhoneNumber] of char;//拨号号码 
            <br>
            &nbsp&nbspszCallbackNumber : array[0..RAS_MaxCallbackNumber] of char;//回叫号码 
            <br>
            &nbsp&nbspszUserName : array[0..UNLEN] of char;//用户名称 <br>
            &nbsp&nbspszPassword : array[0..PWLEN] of char;//用户密码 <br>
            &nbsp&nbspszDomain : array[0..DNLEN] of char;//域名 <br>
            &nbsp&nbspend; <br>
            &nbsp&nbsp　　　　函数返回值为0表示执行成功；否则为错误代码． <br>
            &nbsp&nbsp　　　　下面是一个应用例子，获取指定拨号连接的拨号参数． <br>
            &nbsp&nbspvar <br>
            &nbsp&nbspdwResult : DWORD; <br>
            &nbsp&nbspRASDIALPARAMSData : RASDIALPARAMS; <br>
            &nbsp&nbspNeedPWD : WordBool; <br>
            &nbsp&nbspbegin <br>
            &nbsp&nbsp//指定拨号连接的名称 <br>
            &nbsp&nbspwith RASDIALPARAMSData do <br>
            &nbsp&nbspbegin <br>
            &nbsp&nbspdwSize := sizeof( RASDIALPARAMS );//结构大小 <br>
            &nbsp&nbspszEntryName := '163';//指定拨号连接的名称 <br>
            &nbsp&nbspszUserName := '';//其它五个参数初始化 <br>
            &nbsp&nbspszPassword := ''; <br>
            &nbsp&nbspszDomain := ''; <br>
            &nbsp&nbspszCallbackNumber := ''; <br>
            &nbsp&nbspszPhoneNumber := ''; <br>
            &nbsp&nbspend; <br>
            &nbsp&nbspNeedPWD := true;//需要用户密码 <br>
            &nbsp&nbsp <br>
            &nbsp&nbsp//获取指定拨号连接的拨号参数 <br>
            &nbsp&nbspdwResult := RasGetEntryDialParams( '',@RASDIALPARAMSData,NeedPWD 
            ); <br>
            &nbsp&nbsp <br>
            &nbsp&nbspif dwResult &lt;&gt; 0 then //获取指定拨号连接的拨号参数失败 <br>
            &nbsp&nbspmemo1.lines.add( '获取'+StrPAS(RASDIALPARAMSData.szEntryName 
            )+'拨号参数失败：' <br>
            &nbsp&nbsp+ GetRasError( dwResult )) <br>
            &nbsp&nbspelse <br>
            &nbsp&nbspbegin//显示指定拨号连接的拨号参数 <br>
            &nbsp&nbspmemo1.lines.add( StrPAS(RASDIALPARAMSData.szEntryName )+'拨号参数如下'); 
            <br>
            &nbsp&nbspmemo1.lines.add( '用户名称：' + StrPAS(RASDIALPARAMSData.szUserName 
            )); <br>
            &nbsp&nbspmemo1.lines.add( '用户密码：' + StrPAS(RASDIALPARAMSData.szPassword 
            )); <br>
            &nbsp&nbspmemo1.lines.add( '域 名：' + StrPAS(RASDIALPARAMSData.szDomain 
            )); <br>
            &nbsp&nbspmemo1.lines.add( '回叫号码：' + StrPAS(RASDIALPARAMSData.szCallbackNumber 
            )); <br>
            &nbsp&nbspmemo1.lines.add( '拨号号码：' + StrPAS(RASDIALPARAMSData.szPhoneNumber 
            )); <br>
            &nbsp&nbspend; <br>
            &nbsp&nbspend; <br>
            &nbsp&nbsp　　２、设置拨号连接的拨号参数 <br>
            &nbsp&nbsp　　　　设置拨号连接的拨号参数RasAPI函数为RasSetEntryDialParams，其函数原型为： <br>
            &nbsp&nbspfunction RasSetEntryDialParams( <br>
            &nbsp&nbsplpszPhonebook: pchar;//电话本名称，在Win9X下无作用,可为空字符串 <br>
            &nbsp&nbsppRASDIALPARAMS:LPRASDIALPARAMS;//拨号参数，是一个RASDIALPARAMS类型的指针 
            <br>
            &nbsp&nbspvar lpfPassword : WordBool//是否删除用户密码 <br>
            &nbsp&nbsp) : DWORD; stdcall; <br>
            &nbsp&nbspfunction RasSetEntryDialParams;external RasApiDll name 'RasSetEntryDialParamsA'; 
            <br>
            &nbsp&nbsp参数pRASDIALPARAMS的说明同RasGetEntryDialParams． <br>
            &nbsp&nbsp参数lpfPassword的含义与RasGetEntryDialParams不同，在此表示是否删除用户密码，为 
            <br>
            &nbsp&nbsp　　TRUE时将原来的用户密码删除． <br>
            &nbsp&nbsp　　　　 <br>
            &nbsp&nbsp　　　　函数返回值为0表示执行成功；否则为错误代码． <br>
            &nbsp&nbsp　　　　下面是一个应用例子，设置指定拨号连接的拨号参数． <br>
            &nbsp&nbspvar <br>
            &nbsp&nbspdwResult : DWORD; <br>
            &nbsp&nbspRASDIALPARAMSData : RASDIALPARAMS; <br>
            &nbsp&nbspRemovePWD : WordBool; <br>
            &nbsp&nbspbegin <br>
            &nbsp&nbsp//指定拨号连接的拨号参数 <br>
            &nbsp&nbspwith RASDIALPARAMSData do <br>
            &nbsp&nbspbegin <br>
            &nbsp&nbspdwSize := sizeof( RASDIALPARAMS );//结构大小 <br>
            &nbsp&nbspszEntryName := '163';//指定拨号连接的名称 <br>
            &nbsp&nbspszUserName := 'MyName';//指定用户名称 <br>
            &nbsp&nbspszPassword := 'MyPassword';//指定用户密码 <br>
            &nbsp&nbspszDomain := 'MyDomain';//指定域名 <br>
            &nbsp&nbspszCallbackNumber := '';//指定回叫号码 <br>
            &nbsp&nbspszPhoneNumber := '';//指定拨号号码 <br>
            &nbsp&nbspend; <br>
            &nbsp&nbspRemovePWD := false;//不需要删除用户密码 <br>
            &nbsp&nbsp <br>