Did you ever figure this out, I need to do it too?

It was a while ago ... unfortunate that no one was able to help me but I ended up finding a workable solution eventually.

Pre-preparation: Create an image package of the thin client (not domain joined) in Wyse Device Manager.

Here's what I had to do (from memory):

- Firstly find the device in Wyse Device manager and rename it (thin client will reboot and the new name will eventually show in Device Manager)

- Images --> Deploy the image you created (not domain joined)

- Other packages --> Create a package to run a script to join the thin client to the domain

[Version]

Number=JoinToDomain

Description=Joins to domain into Thin Clients OU

2. Add to Thin Clients OU

OS=WES7

Category=Other Packages

USE_REMOTE=Yes

; Date: 7/29/2015

[Script]

SF " \JoinToDomain.vbs" "c:\scripts\JoinToDomain.vbs"

SF " \JoinToDomain.bat" "c:\scripts\JoinToDomain.bat"

LU "Yes"

EX "C:\scripts\JoinToDomain.bat"

DF "C:\scripts\JoinToDomain.bat"

DF "C:\scripts\JoinToDomain.vbs"

EL

RB

That's it in a nutshell ... create an image package, and create a separate package to join to domain ... the package needs to call a .vbs to join to domain (I added an extra .bat to call a .ps1 to also put it into the appropriate wireless computers group to deploy our wireless cert to it)

Contents of the scripts are below:

.vbs

Const JOIN_DOMAIN = 1
Const ACCT_CREATE = 2
Const ACCT_DELETE = 4
Const WIN9X_UPGRADE = 16
Const DOMAIN_JOIN_IF_JOINED = 32
Const JOIN_UNSECURE = 64
Const MACHINE_PASSWORD_PASSED = 128
Const DEFERRED_SPN_SET = 256
Const INSTALL_INVOCATION = 262144
 
strDomain = "domainname"
strPassword = "password"
strUser = "user account"
strOU = "OU=OU,OU=OU,OU=OU,DC=domain,DC=com"
 
Set objNetwork = CreateObject("WScript.Network")
strComputer = objNetwork.ComputerName
 
Set objComputer = GetObject("winmgmts:{impersonationLevel=Impersonate}!\\" & _
    strComputer & "\root\cimv2:Win32_ComputerSystem.Name='" & _
        strComputer & "'")
 
ReturnValue = objComputer.JoinDomainOrWorkGroup(strDomain, _
    strPassword, strDomain & "\" & strUser, strOU, _
        JOIN_DOMAIN + ACCT_CREATE)

Hope this helps get you started!   I remember this wasn't fun at all ... it could've been so much easier with a bit of assistance from Dell ... the Wyse Device Manager is good but it's quite difficult to use and configure ... I found the HP Device Manager to be a lot more intuitive.