将以下代码复制粘贴到记事本中，另存为“所有文件(*.*)”，文件扩展名为“.reg”即可(文件名可随意)。

代码(不包括最上面和最下面的“=”分隔线)：

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Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINESOFTWAREClassesBriefcaseShellNew]

"IconPath"=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,

00,79,00,6e,00,63,00,75,00,69,00,2e,00,64,00,6c,00,6c,00,2c,00,30,00,00,00

"ItemName"=hex(2):40,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,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,

00,73,00,68,00,65,00,6c,00,6c,00,33,00,32,00,2e,00,64,00,6c,00,6c,00,2c,00,

2d,00,36,00,34,00,39,00,33,00,00,00

"Directory"=""

"Handler"="{85BBD920-42A0-1069-A2E4-08002B30309D}"

[HKEY_LOCAL_MACHINESOFTWAREClassesBriefcaseShellNewConfig]

"IsFolder"=""

"NoExtension"=""

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双击运行该文件，就可以把上述内容加入注册表。重启文件资源管理器Explorer.exe后

右键单击桌面→新建，“公文包”就会出现。

若要取消这个新建项，可以用相同方式将如下代码保存并执行(文件名需要和刚才有所区别，扩展名不变)：

==================================================

Windows Registry Editor Version 5.00

[-HKEY_LOCAL_MACHINESOFTWAREClassesBriefcaseShellNew]

==================================================

注意：其中的“Briefcase.reg”为增加“公文包”的注册表项，“DBriefcase.reg”为删除已有“公文包”的注册表项。