Registry entries with a forward slash aren't created correctly.

[bmitchell76]

For example this key

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\AES 128/128]
"Enabled"=dword:ffffffff

Creates this code

Reg2CI (c) 2021 by Roger Zander

if((Test-Path -LiteralPath "HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\AES 128/128") -ne $true) { New-Item "HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\AES 128/128" -force -ea SilentlyContinue };
New-ItemProperty -LiteralPath 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\AES 128/128' -Name 'Enabled' -Value -1 -PropertyType DWord -Force -ea SilentlyContinue;

and when run creates the following

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Ciphers\AES 128\128]
"Enabled"=dword:ffffffff

The difference being "AES 128/128" vs "AES 128\128"

[bmitchell76]

for reference see the following

https://richardjgreen.net/set-a-registry-value-using-powershell-containing-a-forward-slash/