前段时间，想找个局域网软件，终于找到：LanHelper，安装好后功能还是很强大的，具体的不说了，这里主要说明通过LanHelper向局域网发送消息问题，其一须安装Messenger服务，我就没有安装，在网上看到一篇牛人的帖子，这里转载一下：
首先下载msgsvc.dll文件，将它复制到C：\windows\system32\下面，然后将注册信息写入注册表，注册信息如下：
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Messenger]
"Type"=dword:00000020
"Start"=dword:00000004
"ErrorControl"=dword:00000001
"ImagePath"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,\
74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,\
00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,\
6b,00,20,00,6e,00,65,00,74,00,73,00,76,00,63,00,73,00,00,00
"DisplayName"="Messenger"
"DependOnService"=hex(7):4c,00,61,00,6e,00,6d,00,61,00,6e,00,57,00,6f,00,72,00,\
6b,00,73,00,74,00,61,00,74,00,69,00,6f,00,6e,00,00,00,4e,00,65,00,74,00,42,\
00,49,00,4f,00,53,00,00,00,50,00,6c,00,75,00,67,00,50,00,6c,00,61,00,79,00,\
00,00,52,00,70,00,63,00,53,00,53,00,00,00,00,00
"DependOnGroup"=hex(7):00,00
"ObjectName"="LocalSystem"
"Description"="传输客户端和服务器之间的 NET SEND 和 Alerter 服务消息。此服务与 Windows Messenger 无关。如果服务停止，Alerter 消息不会被传输。如果服务被禁用，任何直接依赖于此服务的服务将无法启动。"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Messenger\Parameters]
"ServiceDll"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,\
00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
6d,00,73,00,67,00,73,00,76,00,63,00,2e,00,64,00,6c,00,6c,00,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Messenger\Security]
"Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\
00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\
00,00,02,00,60,00,04,00,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,\
05,0b,00,00,00,00,00,18,00,9d,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,\
23,02,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,20,\
02,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,05,12,00,00,00,01,01,\
00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Messenger\Enum]
"0"="Root\\LEGACY_MESSENGER\\0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001
复制以上代码，将文件保存为*.reg，文件名任取，双击该文件；重启后服务应该被装上了。但在开启Messenger服务的时候提示：“错误1083：配置成在该可执行程序中运行的这个服务不能执行该服务”
1．故障现象
尝试在“服务”管理单元窗口手动启动服务时，系统提示“错误1083：配置成在该可执行程序中运行的这个服务不能执行该服务”。
2．原因分析
该故障通常在由svchost服务宿主进程所启动的服务上发生。大家知道Windows XP SP2最多可以启动七个svchost进程实例(实际上启动六个进程实例)，分别负责启动一组服务。每个svchost实例所负责启动的服务由以下注册表项决定：
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost
其下共有七个键值：DcomLaunch、HTTPFilter、imgsvc、LocalService、netsvcs、NetworkService、rpcss和termsvcs。每个键值都定义了一个或者多个服务，也就是对应每个svchost进程实例所能启动的一组服务。
比如:“Task Scheduler”服务的可执行程序参数是“svchost.exe -k netsvcs”，对应的svchost进程在启动该服务之前，会先到HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost下的netsvcs键值里查找是否有该服务的定义，如果没有，就会出现该故障现象。
3．解决办法
很简单，首先打开该服务的属性对话框，查看其可执行程序的命令参数(本例是netsvcs)。
然后进入以下注册表项：
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost
在右侧定位到对应的键值(本例是netsvcs)，在其数值数据里添加该服务名即可，本例是Schedule，并重启系统。
AppMgmt
AudioSrv
Browser
CryptSvc
DMServer
EventSystem
HidServ
Ias
Iprip
Irmon
LanmanServer
LanmanWorkstation
Messenger
Netman
Nla
Ntmssvc
NWCWorkstation
Nwsapagent
Rasauto
Rasman
Remoteaccess
Sacsvr
Schedule
Seclogon
SENS
Sharedaccess
Themes
TrkWks
TrkSvr
WZCSVC
Wmi
WmdmPmSp
winmgmt
wuauserv
BITS
ShellHWDetection
uploadmgr
WmdmPmSN
xmlprov
AeLookupSvc
helpsvc
