>The ADIR() function documentation states that if you specify an array that does not exist one will be automatically created for you. This is accurate when you are running an exe or in the command window. However, it is not so when you execute ADIR() in a DLL. If you do not declare the array before calling ADIR(), it does not create it and returns 0.
>Has anybody else run into this?

I have found this to be true if the array variable you attempt to pass it is LOCAL. Make sure it's a PRIVATE variable if you must declare it.