How to set a binary registry value (REG_BINARY) with PowerShell?

问题

How to set a binary registry value (REG_BINARY) with PowerShell?

Background:

I need to change some properties of the ASP.NET State service using a PowerShell script. Unfortunately, the built-in PowerShell cmdlet Set-Service only lets you modify the service description, startup type, display name, and status. I need to modify the Subsequent failures property found on the Recovery tab (when viewing the service's properties). I found that this value was stored in the registry as a REG_BINARY value.

An export of the value looks like this:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\aspnet_state]
"FailureActions"=hex:50,33,01,00,00,00,00,00,00,00,00,00,03,00,00,00,0e,00,00,\
  00,01,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00

In Powershell there is a Set-ItemProperty cmdlet with which you can set registry value values. For a string or dword value, you can just pass a string or an int. I know which hex value in the array to change, but I can't figure out how to set a binary value.

回答1:

The following line gives you an example how to create one

New-ItemProperty -Path . -Name Test -PropertyType Binary -Value ([byte[]](0x30,0x31,0xFF))

and how to change an existing one:

Set-ItemProperty -Path . -Name Test -Value ([byte[]](0x33,0x32,0xFF))

回答2:

This post has helped me out with similar problem. Thanks!

Bringing xBr0k3n and Howard's answers together:

#Change these three to match up to the extracted registry data and run as Admin
$YourInput = "50,33,01,00,00,00,00,00,00,00,00,00,03,00,00,00,0e,00,00,00,01,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00"
$RegPath   = 'HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\aspnet_state'
$AttrName  = "FailureActions"

$hexified = $YourInput.Split(',') | % { "0x$_"}
New-ItemProperty -Path $RegPath -Name $AttrName -PropertyType Binary -Value ([byte[]]$hexified)

回答3:

Is it just me who feels this misses the main part of this question?

How would you go about changing the original:

50,33,01,00,00,00,00,00,00,00,00,00,03,00,00,00,0e,00,00,\
00,01,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00

Into a format like:

([byte[]](0x33,0x32,0xFF))

EDIT: After trying to get this working it turns out you just prefix all of the pairs with '0x'. Not sure why that was not mentioned in the answer. So just change the above to:

0x50,0x33,0x01,0x00,0x00,0x00,0x00,0x00... etc.

Then wrap that in the following:

([byte[]](0x50,0x33,0x01,0x00,0x00,0x00,0x00,0x00... etc.))

回答4:

FYI, you can also set binary values with the PSRemoteRegistry PowerShell module ( http://psremoteregistry.codeplex.com/), on local or remote computers.

$Key = 'SOFTWARE\MyCompany'     
Set-RegBinary -Hive LocalMachine -ComputerName Server1 -Key $Key -Value RegBinary -Data @([char[]]'PowerShell')

来源：https://stackoverflow.com/questions/6551224/how-to-set-a-binary-registry-value-reg-binary-with-powershell