Windows 10 Add Copy-Paste as Symbolic Link or Junction

paste-symlink.ps1

# Add windows Explorer Right-Click menu to paste copied item as Junction or SymbolicLink with PowerShell
# Locate file on C:\CMD\
 param (
    [Parameter(Mandatory=$true)][string]$location
 )

Set-Location $location
$files = Get-Clipboard -Format FileDropList
$count = $files.count;
if($count -eq 0)
{
    echo "No file(s) in clipboard"
    pause
    exit
}
echo "Making Junction/Link of $count files"
foreach ($file in $files)
{
    if( (Test-Path $file.Name) -eq $true ){
        echo "$($file.Name) Exists"
    }else{
        if($file.Attributes -eq 'Directory')
        {
            #echo "Junction: $($file.Name) -> $file"
            New-Item -ItemType Junction -Name $file.name -Target $file
        } else
        {
            #echo "SymLink : $($file.Name) -> $file"
            New-Item -ItemType SymbolicLink -Name $file.name -Target $file
        }
            
    }
    
}
pause

paste-symlink.reg

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Directory\Background\shell\runas]
@="Paste Symlink"

[HKEY_CLASSES_ROOT\Directory\Background\shell\runas\command]
@="powershell.exe -File \"C:\\CMD\\paste-symlink.ps1\" -location \"%V\""

admin is not required.
see:
https://gist.github.com/ipcjs/82e4385532be90eac99546df99a2854d
https://stackoverflow.com/a/34905638/3673440

Uh, how do i actually use these though? Where do i put them? How do i apply the reg edits?