Start-Process: Access is denied (even though i've provided credentials

Question

I am getting the following error when trying to execute a line of code

Start-Process : This command cannot be executed due to the error: 
Access is denied.

This is the code being executed

$username = "domain\username"
$passwordPlainText = "password"     
$password = ConvertTo-SecureString "$passwordPlainText" -asplaintext -force
$cred = New-Object -TypeName System.Management.Automation.PSCredential -argumentlist $username,$password

$powershellArguments = "D:\path\ps.script.ps1", "arg1", "arg2", "arg3", "arg4"
Start-Process "powershell.exe" -credential $cred -ArgumentList $powershellArguments -wait

• This code works fine when executed locally, but not when called via vbs WMI
• Both computers exist in the same domain and address range
• The username and password supplied have admin privileges on both machines
• I have tried both with and without -wait however neither works, and due to the user being privileged, I'd prefer to keep it

Answer 1

Q: Have you tried without the "-wait"?

Look at this link:

• http://social.technet.microsoft.com/Forums/en-US/winserverpowershell/thread/3983a1e4-a663-47df-86f6-874d1828ea61/

The parameter "-wait" suppresses the command prompt or retains the window until the process completes. This operation may require administrator rights.