Creating Key in regedit with "/"in the name - powershell

Question

Hi i'm just wondering im currently creating folder on my registry this is my code
function AddMachineRegistry{
param(
[string] $registryPath = $(throw "registryPath is a required parameter"),
[string] $name = $(throw "name is a required parameter"),
[int] $value = $(throw "value is a required parameter")
)
IF(!(Test-Path $registryPath))
{
New-Item -Path $registryPath -ItemType Key -Force | Out-Null
}
New-ItemProperty -Path $registryPath -Name $name -Value $value -PropertyType DWORD -force | Out-Null
}
and tried to used it like this
AddMachineRegistry "HKLM:\System\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\RC4 40/128\" "Enabled" 0
basically im trying to create a key with the name of "RC4 40/128" but when i execute it it creates "RC4 40" folder and under that it creates "128"
im just wondering is it possible to create that? since im currently using "New-Item" and just giving it a path. i want my folder to named "RC4 40/128"

Answer 1

The easiest way will be invoking & REG ADD (basically, using CMD for the task) since PowerShell wants to interpret the forward slash as a delimiter. I just had a problem at work recently where I ran into this problem and could not find any solutions beyond that one.
A small tip: | Out-Null is a very slow operation and if you plan on calling anything with it to scale, I'd recommend using $Null = or [Void]( ... )

Answer 2

Normaly you must use:
New-ItemProperty -Path "HKLM:\System\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\" -Name "RC4 40/128" -PropertyType DWORD -Value 0
In this case it will we be:
AddMachineRegistry "HKLM:\System\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\" "RC4 40/128" 0
There is no need to backslashes the "/". Alternative: you can put path in ' ' instead " ". Commands in ' ' change special characters to normal chars.