PowerShell functions to create a new user profile

Create-NewProfile.ps1

<#
.Synopsis
   Rough PS functions to create new user profiles
.DESCRIPTION
   Call the Create-NewProfile function directly to create a new profile
.EXAMPLE
   Create-NewProfile -Username 'testUser1' -Password 'testUser1'
.NOTES
   Created by: Josh Rickard (@MS_dministrator)
   Date: 24MAR2017
   Location: https://gist.github.com/MSAdministrator/41df43e780993e48bf637a4ccd0e4c68
   Contact: https://github.com/MSAdministrator
            MSAdministrator.com
#>


#Function to create the new local user first
function New-LocalUser
{
    [CmdletBinding()]
    [Alias()]
    [OutputType([int])]
    Param
    (
        # Param1 help description
        [Parameter(Mandatory=$true,
                   ValueFromPipelineByPropertyName=$true,
                   Position=0)]
        $userName,
 
        # Param2 help description
        [string]
        $password
    )
 
    $system = [ADSI]"WinNT://$env:COMPUTERNAME";
    $user = $system.Create("user",$userName);
    $user.SetPassword($password);
    $user.SetInfo();
 
    $flag=$user.UserFlags.value -bor 0x10000;
    $user.put("userflags",$flag);
    $user.SetInfo();
 
    $group = [ADSI]("WinNT://$env:COMPUTERNAME/Users");
    $group.PSBase.Invoke("Add", $user.PSBase.Path);
}

#function to register a native method
function Register-NativeMethod
{
    [CmdletBinding()]
    [Alias()]
    [OutputType([int])]
    Param
    (
        # Param1 help description
        [Parameter(Mandatory=$true,
                   ValueFromPipelineByPropertyName=$true,
                   Position=0)]
        [string]$dll,
 
        # Param2 help description
        [Parameter(Mandatory=$true,
                   ValueFromPipelineByPropertyName=$true,
                   Position=1)]
        [string]
        $methodSignature
    )
 
    $script:nativeMethods += [PSCustomObject]@{ Dll = $dll; Signature = $methodSignature; }
}

#function to add native method
function Add-NativeMethods
{
    [CmdletBinding()]
    [Alias()]
    [OutputType([int])]
    Param()
 
    $nativeMethodsCode = $script:nativeMethods | % { "
        [DllImport(`"$($_.Dll)`")]
        public static extern $($_.Signature);
    " }
 
    Add-Type @"
        using System;
        using System.Text;
        using System.Runtime.InteropServices;
        public static class NativeMethods {
            $nativeMethodsCode
        }
"@
}

#Main function to create the new user profile
function Create-NewProfile {
 
    [CmdletBinding()]
    [Alias()]
    [OutputType([int])]
    Param
    (
        # Param1 help description
        [Parameter(Mandatory=$true,
                   ValueFromPipelineByPropertyName=$true,
                   Position=0)]
        [string]$UserName,
 
        # Param2 help description
        [Parameter(Mandatory=$true,
                   ValueFromPipelineByPropertyName=$true,
                   Position=1)]
        [string]
        $Password
    )
  
    Write-Verbose "Creating local user $Username";
 
    try
    {
        New-LocalUser $UserName $Password;
    }
    catch
    {
        Write-Error $_.Exception.Message;
        break;
    }
 
    $script:nativeMethods = @();
 
    if (-not ([System.Management.Automation.PSTypeName]'NativeMethods').Type)
    {
        Register-NativeMethod "userenv.dll" "int CreateProfile([MarshalAs(UnmanagedType.LPWStr)] string pszUserSid,`
         [MarshalAs(UnmanagedType.LPWStr)] string pszUserName,`
         [Out][MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszProfilePath, uint cchProfilePath)";
 
        Add-NativeMethods;
    }
 
    $localUser = New-Object System.Security.Principal.NTAccount("$UserName");
    $userSID = $localUser.Translate([System.Security.Principal.SecurityIdentifier]);
    $sb = new-object System.Text.StringBuilder(260);
    $pathLen = $sb.Capacity;
 
    Write-Verbose "Creating user profile for $Username";
 
    try
    {
        [NativeMethods]::CreateProfile($userSID.Value, $Username, $sb, $pathLen) | Out-Null;
    }
    catch
    {
        Write-Error $_.Exception.Message;
        break;
    }
}

Hey, Do you know why i cannot make this work for me ? copied all functions to ps and when i write user and password i get this error:

PS C:\Users\Joshua> Create-NewProfile

cmdlet Create-NewProfile at command pipeline position 1
Supply values for the following parameters:
UserName: test
Password: 123456789
Create-NewProfile : A positional parameter cannot be found that accepts argument '123456789'.
At line:1 char:1
+ Create-NewProfile
+ ~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Create-NewProfile

powershell version:

PS C:\Users\Joshua> (Get-Host).Version

Major  Minor  Build  Revision
-----  -----  -----  --------
5      1      18362  145

Windows10 Enterprise

Sorry for commenting this old post, but I think I know why this doesn't work. Powershell 5.1 already provides a New-LocalUser commandlet so

1. comment out the whole New-LocalUser function
2. in the Create-NewProfile function, change 'New-LocalUser $UserName $Password' to the following:
   $SecurePwd = ConvertTo-SecureString $Password -AsPlainText -Force
   New-LocalUser -Name $UserName -password $SecurePwd