If a DLL function has the same name as a 4Test reserved word, or the function does not have a name but an ordinal number, you need to rename the function within your 4Test declaration and use the 4Test alias statement to map the declared name to the actual name.
For example, the exit statement is reserved by the 4Test compiler. Therefore, to call a function named exit, you need to declare it with another name, and add an alias statement, as shown here:
dll "mydll.dll" my_exit () alias "exit"