How to add the same value to multiple registry keys

Question

I have a single value that I'd like to add to many different keys using a .REG file, and I just want to make sure that the syntax I currently have is correct before I risk running it on my machine.

[HKEY_CLASSES_ROOT\WMP11.AssocFile.MP4\shell\Enqueue\command]
[HKEY_CLASSES_ROOT\WMP11.AssocFile.m3u\shell\Enqueue\command]
[HKEY_CLASSES_ROOT\WMP11.AssocFile.MPEG\shell\Enqueue\command]
[HKEY_CLASSES_ROOT\WMP11.AssocFile.WAX\shell\Enqueue\command]
[HKEY_CLASSES_ROOT\WMP11.AssocFile.WMV\shell\Enqueue\command] 
"DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}"

Here, I'm wanting to add a key called command with a String value of "DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}" to all five registry keys listed. Would the above syntax work to do this?

Answer 1

I believe that you want to add Windows Registry Editor Version 5.00 as the first line of your .reg file, have a blank line, then proceed with each individual HKEY_CLASSES_ROOT entry immediately followed by a separate "DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}" line for each one. Essentially, utilize another blank line followed by the next HKEY_CLASSES_ROOT entry with its own "DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}" line on the subsequent line, etc. In other words, something like the following:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\WMP11.AssocFile.MP4\shell\Enqueue\command]
"DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}"

[HKEY_CLASSES_ROOT\WMP11.AssocFile.m3u\shell\Enqueue\command]
"DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}"

[HKEY_CLASSES_ROOT\WMP11.AssocFile.MPEG\shell\Enqueue\command]
"DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}"

[HKEY_CLASSES_ROOT\WMP11.AssocFile.WAX\shell\Enqueue\command]
"DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}"

[HKEY_CLASSES_ROOT\WMP11.AssocFile.WMV\shell\Enqueue\command] 
"DelegateExecute"="{45597c98-80f6-4549-84ff-752cf55e2d29}"

As always, backup the appropriate area of the registry before you make any changes!