Problem with Asynchronous Call and Forget.vi and MessageBoxW (user32.dll)

[J-M]

I have a problem.  I want to use the same type of structure that in "Asynchronous Call and Forget.vi".

There is an image of my VI (Message Box.vi).

The VI wait at the "Close reference" until I select OK or Annuler (cancel).  This is not the expected behavior.  If I disable the "Close reference"  I have the expected behavior (renaming the buttons properly).

What I am doing wrong with the asynchronous call ?

[Darin.K · Accepted solution]

Looks like Close Reference wants the root loop and your dialog is blocking it until it is finished.   I assume that Run in the UI thread is selected in the CLFN for the MessageBoxW function, try changing it to Run in any thread

[J-M]

Thanks Darin!!!