惊天魔盗团2先锋影院:APPLication layer Gateway service是什么？？？我的电脑总是出现它的错误报告。是怎么回事？？？？

关于ALG.exe我查了一下注册表，它原来是一个服务：》》》共有如下几处：各位网友有Application Layer Gateway Service这服务吗？

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\CLSID\{D6015EC3-FA16-4813-9CA1-DA204574F5DA}\LocalServer32]
@="D:\\WINDOWS\\System32\\alg.exe"

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Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D6015EC3-FA16-4813-9CA1-DA204574F5DA}\LocalServer32]
@="D:\\WINDOWS\\System32\\alg.exe"

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Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ALG]
"Type"=dword:00000010
"Start"=dword:00000003
"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,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,61,\
00,6c,00,67,00,2e,00,65,00,78,00,65,00,00,00
"DisplayName"="Application Layer Gateway Service"
"ObjectName"="NT AUTHORITY\\LocalService"
"Description"="为 Internet 连接共享和 Windows 防火墙提供第三方协议插件的支持。"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ALG\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,fd,01,02,00,01,01,00,00,00,00,00,\
05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\
20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\
00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\
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\ControlSet001\Services\ALG\Enum]
"0"="Root\\LEGACY_ALG\\0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001

**************************************************

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\ALG]
"Type"=dword:00000010
"Start"=dword:00000003
"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,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,61,\
00,6c,00,67,00,2e,00,65,00,78,00,65,00,00,00
"DisplayName"="Application Layer Gateway Service"
"ObjectName"="NT AUTHORITY\\LocalService"
"Description"="为 Internet 连接共享和 Windows 防火墙提供第三方协议插件的支持。"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet003\Services\ALG\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,fd,01,02,00,01,01,00,00,00,00,00,\
05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\
20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\
00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\
00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00

********************************************************

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ALG]
"Type"=dword:00000010
"Start"=dword:00000003
"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,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,61,\
00,6c,00,67,00,2e,00,65,00,78,00,65,00,00,00
"DisplayName"="Application Layer Gateway Service"
"ObjectName"="NT AUTHORITY\\LocalService"
"Description"="为 Internet 连接共享和 Windows 防火墙提供第三方协议插件的支持。"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ALG\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,fd,01,02,00,01,01,00,00,00,00,00,\
05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\
20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\
00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\
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\ALG\Enum]
"0"="Root\\LEGACY_ALG\\0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001

是一个应用程序.