An easy way to identify the execution path of the current assembly is to retrieve the read-only AppDomain.CurrentDomain.BaseDirectory property.
Note that Environment.CurrentDirectory property (read-write) also does the same, as long as the application does not use open/save file-dialogs. Environment.CurrentDirectory initially points to the assembly’s execution path, but when an open/save file-dialog is invoked the path changes to the recent path used by the dialog.