Registry 如何正确地将文件关联添加到Windows注册表？

我应该向Windows注册表添加哪些数据和位置，以正确创建文件关联

我问这个问题主要是因为我几年前编写的一些旧应用程序，它们使用Visual Studio.NET的Windows Installer packager创建文件关联。我安装的扩展是

.whr

和

.encxml

现在，在安装了这些应用程序的计算机上，有时会出现一个奇怪的问题-当在Google Chrome或Internet Explorer中下载文件（特别是exe、msi或zip文件）时，浏览器会将文件扩展名更改为我的安装程序安装的扩展名之一。我不知道它是否会影响其他浏览器——这两个浏览器有什么共同点吗？所以例如，如果您下载，文件将被下载为（或.whr，无论它当前选择哪一个），没有任何明显的原因

我应该注意到，

HKCR\.whr

和

HCKR\.encxml

密钥引用（客户经理加密的XML文件和工作时间记录）的密钥中有空格，当我在Visual Studio中创建关联时，我没有在前面添加“.”。可能不允许使用空格，和/或您应该以“.”作为前缀？注册表代码似乎没有问题，但我通过查看注册表注意到，其他所有应用程序都没有使用关联类中的空间，我所知道的任何机器上安装的任何应用程序的任何其他文件扩展名也没有出现此问题-仅是由我的应用程序的VS安装程序创建的文件扩展名。我已经粘贴了相应注册表项的注册表转储和与文件扩展名相关的值-由于MSI是专有的，我不知道这是否是全部，但从我从其他应用程序了解到，这应该是全部。多年来，我一直在想这个问题，但始终无法解决。我很快就要用一个更新的产品替换一个旧的应用程序，所以这次我想确保没有像这样奇怪的bug

以下是数据（请注意，我已经指出了一些二进制字符串的文本值，该值下面带有//注释）：

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在Windows Installer中，我们使用RegisterExtensionInfo标准操作：

它主要使用扩展表和谓词表以及与COM相关的表的一些连接：

（扩展表）

---

（动词表）

有关成功完成此操作的一些代码项目，请参阅。即使你不使用C#编写代码，你仍然可以通过阅读代码来了解他们是如何做到这一点的。Windows Installer是一种声明式编程模型，而不是命令式编程模型。在MSI的世界里，看一个C#示例并对其进行仿真将被认为是一个fagile、进程外反模式。

[HKEY_CLASSES_ROOT\.encxml]
"Content Type"="application/octet-stream"
@="Account Manager Encrypted XML File"

[HKEY_CLASSES_ROOT\.encxml\Account Manager Encrypted XML File]

[HKEY_CLASSES_ROOT\.encxml\Account Manager Encrypted XML File\ShellNew]

[HKEY_CLASSES_ROOT\Account Manager Encrypted XML File]
@="Account Manager Encrypted XML File"

[HKEY_CLASSES_ROOT\Account Manager Encrypted XML File\DefaultIcon]
@=hex(2):25,00,41,00,50,00,50,00,44,00,41,00,54,00,41,00,25,00,5c,00,4d,00,69,\
  00,63,00,72,00,6f,00,73,00,6f,00,66,00,74,00,5c,00,49,00,6e,00,73,00,74,00,\
  61,00,6c,00,6c,00,65,00,72,00,5c,00,7b,00,42,00,36,00,34,00,31,00,37,00,36,\
  00,30,00,42,00,2d,00,37,00,44,00,42,00,37,00,2d,00,34,00,46,00,31,00,42,00,\
  2d,00,41,00,44,00,36,00,45,00,2d,00,30,00,41,00,33,00,34,00,32,00,30,00,46,\
  00,35,00,45,00,45,00,30,00,44,00,7d,00,5c,00,5f,00,36,00,46,00,45,00,46,00,\
  46,00,39,00,42,00,36,00,38,00,32,00,31,00,38,00,34,00,31,00,37,00,46,00,39,\
  00,38,00,46,00,35,00,34,00,39,00,2e,00,65,00,78,00,65,00,2c,00,30,00,00,00

// Product code GUID is: {F7F214E9-ED37-4AE1-B0D2-93427973E60A}, which is different from below but I probably changed it at some point for some reason
// %APPDATA%\Microsoft\Installer\{B641760B-7DB7-4F1B-AD6E-0A3420F5EE0D}\_6FEFF9B68218417F98F549.exe,0

[HKEY_CLASSES_ROOT\Account Manager Encrypted XML File\shell]
@="open"

[HKEY_CLASSES_ROOT\Account Manager Encrypted XML File\shell\open]
@="&Open"

[HKEY_CLASSES_ROOT\Account Manager Encrypted XML File\shell\open\command]
@="\"C:\\Program Files\\Petroules Enterprises\\Account Manager\\AccountManager.exe\" \"%1\""
"command"=hex(7):4c,00,29,00,25,00,59,00,63,00,73,00,67,00,2d,00,4c,00,41,00,\
  28,00,30,00,64,00,66,00,34,00,36,00,75,00,5f,00,50,00,27,00,3e,00,27,00,7d,\
  00,27,00,66,00,25,00,6f,00,59,00,64,00,4b,00,69,00,48,00,74,00,7a,00,35,00,\
  21,00,55,00,2b,00,6c,00,68,00,54,00,20,00,22,00,25,00,31,00,22,00,00,00,00,\
  00

// This is a bizarre-looking value... what's up with that?
// L)%Ycsg-LA(0df46u_P'>'}'f%oYdKiHtz5!U+lhT "%1"

[HKEY_CLASSES_ROOT\.whr]
"Content Type"="application/octet-stream"
@="Work Hours Record"

[HKEY_CLASSES_ROOT\.whr\Work Hours Record]

[HKEY_CLASSES_ROOT\.whr\Work Hours Record\ShellNew]

[HKEY_CLASSES_ROOT\Work Hours Record]
@="Work Hours Record"

[HKEY_CLASSES_ROOT\Work Hours Record\DefaultIcon]
@=hex(2):25,00,41,00,50,00,50,00,44,00,41,00,54,00,41,00,25,00,5c,00,4d,00,69,\
  00,63,00,72,00,6f,00,73,00,6f,00,66,00,74,00,5c,00,49,00,6e,00,73,00,74,00,\
  61,00,6c,00,6c,00,65,00,72,00,5c,00,7b,00,46,00,41,00,32,00,33,00,44,00,37,\
  00,36,00,34,00,2d,00,46,00,36,00,34,00,39,00,2d,00,34,00,38,00,46,00,39,00,\
  2d,00,38,00,44,00,30,00,42,00,2d,00,45,00,31,00,38,00,38,00,35,00,41,00,39,\
  00,38,00,31,00,46,00,39,00,39,00,7d,00,5c,00,5f,00,36,00,46,00,45,00,46,00,\
  46,00,39,00,42,00,36,00,38,00,32,00,31,00,38,00,34,00,31,00,37,00,46,00,39,\
  00,38,00,46,00,35,00,34,00,39,00,2e,00,65,00,78,00,65,00,2c,00,30,00,00,00

// Product code GUID: {FA23D764-F649-48F9-8D0B-E1885A981F99}, same as below
// %APPDATA%\Microsoft\Installer\{FA23D764-F649-48F9-8D0B-E1885A981F99}\_6FEFF9B68218417F98F549.exe,0

[HKEY_CLASSES_ROOT\Work Hours Record\shell]

[HKEY_CLASSES_ROOT\Work Hours Record\shell\open]
@="&Open"

[HKEY_CLASSES_ROOT\Work Hours Record\shell\open\command]
@="\"C:\\Program Files\\Petroules Enterprises\\Work Hours Calculator\\WorkHoursCalculator.exe\" \"%1\""
"command"=hex(7):28,00,5d,00,56,00,49,00,79,00,55,00,7b,00,5e,00,4e,00,3f,00,\
  26,00,68,00,48,00,7e,00,53,00,24,00,6e,00,31,00,36,00,59,00,3e,00,33,00,75,\
  00,5f,00,7d,00,47,00,26,00,70,00,79,00,75,00,78,00,38,00,4e,00,72,00,43,00,\
  6e,00,67,00,27,00,44,00,67,00,42,00,20,00,22,00,25,00,31,00,22,00,00,00,00,\
  00

// Same bizarre-looking type of value as before, but different...
// (]VIyU{^N?&hH~S$n16Y>3u_}G&pyux8NrCng'DgB "%1"