I use TFS Build which is configured with a service account.
I've modified the worklow template to execute a powershell script.
The powershell is launched but on sharepoint cmdlet I have an "access denied error".
So I tested the script with run as different user (using tfs build service account) and it works.
The tfs service account SpShelleAdmin, local admin and farm admin.
I need help.
PS : Get-SpSolution works