方法一（推荐）、

把以下代码，复制到SublimeText3的安装目录，然后重命名为：sublime_addright.inf，然后右击安装就可以了。PS：重命名文件之前，需要先在工具–文件夹选项，查看中，把隐藏已知文件类型的扩展名前边的复选框不勾选。

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[Version]
Signature="$Windows NT$"

[DefaultInstall]
AddReg=SublimeText3

[SublimeText3]
hkcr,"*\shell\SublimeText3",,,"用 SublimeText3 打开"
hkcr,"\shell\SublimeText3\command",,,"""%1%\sublime_text.exe"" ""%%1"" %%"
hkcr,"Directory\shell\SublimeText3",,,"用 SublimeText3 打开"
hkcr,"*\shell\SublimeText3","Icon",0x20000,"%1%\sublime_text.exe, 0"
hkcr,"Directory\shell\SublimeText3\command",,,"""%1%\sublime_text.exe"" ""%%1"""

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方法二、

把以下代码，复制到SublimeText3的安装目录，然后重命名为：sublime_addright.reg，然后双击就可以了。PS:需要把里边的Sublime的安装目录，替换成实际的Sublime安装目录。

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Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT*\shell\SublimeText3]
@="用 SublimeText3 打开"
"Icon"="D:\Program Files\Sublime Text 3\sublime_text.exe,0"

[HKEY_CLASSES_ROOT*\shell\SublimeText3\command]
@="D:\Program Files\Sublime Text 3\sublime_text.exe %1"

[HKEY_CLASSES_ROOT\Directory\shell\SublimeText3]
@="用 SublimeText3 打开"
"Icon"="D:\Program Files\Sublime Text 3\sublime_text.exe,0"

[HKEY_CLASSES_ROOT\Directory\shell\SublimeText3\command]
@="D:\Program Files\Sublime Text 3\sublime_text.exe %1"

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最后，附一个删除右键菜单的脚本吧。把以下代码，复制到SublimeText3的安装目录，然后重命名为：sublime_delright.reg，然后双击就可以了。

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Windows Registry Editor Version 5.00
[-HKEY_CLASSES_ROOT*\shell\SublimeText3]
[-HKEY_CLASSES_ROOT\Directory\shell\SublimeText3]

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转自：http://blog.csdn.net/geofferysun/article/details/52264069