Calling a PowerShell code from Access 2010

I had a program written in VBA which called a PowerShell script to create Exch2010 mailbox accounts for new users. Worked fabulous with Access 2003.

We moved our Databases to a newer server with Access 2010 on it. I have checked reference libraries and anything pertaining to the code - everything looks good. I then consulted the Microsoft boards for calling a PS Script from Access2010 but their solution does not work. If anyone has any suggestions or solutions - much appreciated!

Access 2003 code that worked:

'Call Powershell and run connection
    Call Shell("powershell -file ""c:\scripts\NewMailbox.ps1""", vbMaximizedFocus) 

'Call Powershell and run connection
    Call Shell("C:\WINDOWS\system32\WindowsPowerShell\v1.0\powershell.exe -command c:\scripts\NewMailbox.ps1", vbMaximizedFocus)