Unable to create outlook email draft using powershell on Outlook application

Hi have requirement to prepare outlook email draft and open it in Outlook.

I have created php form to run supply variables to a powershell wich invokes outlook methods and create the email.

When I execute the powershell as below

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe C:\wamp\www\bizops\prepare_email.ps1 >> C:\wamp\www\bizops\log.log

It works perfectly.

But when I place the above line in a batch file and call it in PHP Script,

$mail_string="c:\WINDOWS\system32\cmd.exe /c START C:\wamp\www\bizops\outlook_mail.bat";
exec($mail_string);

it gives me below error

 New-Object : Retrieving the COM class factory for component with CLSID 
 {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 
 80080005 Server execution failed (Exception from HRESULT: 0x80080005 
 (CO_E_SERVER_EXEC_FAILURE)).At C:\wamp\www\bizops\prepare_email.ps1:25 char:7
 + $ol = New-Object -comObject Outlook.Application
 +       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 + CategoryInfo          : ResourceUnavailable: (:) [New-Object], COMException
 + FullyQualifiedErrorId : NoCOMClassIdentified,Microsoft.PowerShell.Commands.NewObjectCommand

my powershell code looks like (Section which thorows this error)

$ol = New-Object -comObject Outlook.Application 
$ns = $ol.GetNameSpace("MAPI")
$Mail = $ol.CreateItem(0)
$Mail.Recipients.Add($mail_to_list)  
$mail.Subject = $mail_subject
$mail.DeferredDeliveryTime = $deliverAt
$Mail.HTMLBody = "SOME HTML TEXT"

Though it took so long to find a resolution as error was not clear. There was confusion if the issue is due to permission miss match or something else.

I am glad I was able to find the solution of this.

We need to run httpd through a valid user(You may want to create a separate user t to run your tasks). enter image description here

Hope screenshot will make it clear