如何将文件扩展名关联到程序而不使其成为默认程序 [英] How to associate a file extension to a program without making it the default program

问题描述

我正在某些系统上部署一个小型转换工具，并希望用户能够通过右键单击打开方式 菜单来运行它.但我不想更改用户与此文件类型关联的默认程序.

I'm deploying a small conversion tool on some systems, and want the users to be able to run it from the right click Open with menu. But I don't want to change the default program users have associated to this file type.

将文件扩展名/类型与程序相关联很容易，但如何在不更改默认程序的情况下(当然以编程方式)做到这一点?

It is easy to associate a file extension/type to a program, but how to do it (programatically of course) without changing the default program?

推荐答案

设置以下键对我有用:

key HKLM/SOFTWARE/Microsoft/Windows/CurrentVersion/App Paths/<progname>: "" = <appPath>

key HKCR/Applications/<progname>/SupportedTypes: <fileExt> = ""
key HKCR/<fileExt>: "" = <progID>

key HKCR/<progID>/OpenWithList/<progName>
key HKCR/<fileExt>/OpenWithList/<progName>
key HKCR/SystemFileAssociations/<fileExt>/OpenWithList/<progName>

delete key and subkey at HKCU/SOFTWARE/Microsoft/Windows/CurrentVersion/Explorer/fileExts/<fileExt>

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