<OperationContractAttribute()>
Function ChangePassword( _
   ByVal username As String, _
   ByVal oldpassword As String, _
   ByVal newpassword As String, _
   ByVal extraData As String _
) As Boolean

Dim instance As IManageService
Dim username As String
Dim oldpassword As String
Dim newpassword As String
Dim extraData As String
Dim value As Boolean
 
value = instance.ChangePassword(username, oldpassword, newpassword, extraData)

[OperationContractAttribute()]
bool ChangePassword( 
   string username,
   string oldpassword,
   string newpassword,
   string extraData
)

[OperationContractAttribute()]
bool ChangePassword( 
   String^ username,
   String^ oldpassword,
   String^ newpassword,
   String^ extraData
)