Changes the service account for the currently registered service host.
If another account is used to authenticate against TFS, use UpdateAuthenticatingAccount.
Namespace:  Microsoft.TeamFoundation.Build.Config
Assembly:  Microsoft.TeamFoundation.Build.Config (in Microsoft.TeamFoundation.Build.Config.dll)
Syntax
'Declaration
Public Shared Sub UpdateBuildServiceAccount ( _
    userName As String, _
    password As String _
)
public static void UpdateBuildServiceAccount(
    string userName,
    string password
)
public:
static void UpdateBuildServiceAccount(
    String^ userName, 
    String^ password
)
static member UpdateBuildServiceAccount : 
        userName:string * 
        password:string -> unit
public static function UpdateBuildServiceAccount(
    userName : String, 
    password : String
)
Parameters
- userName 
 Type: System.String- The service account to use for the service host. If null, Network Service will be used. 
- password 
 Type: System.String- The password for the service account. 
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.