Need some help with the PDF ActiveX!

[Popo]

I have an application that call a vi which will open a selected PDF file. during the first ran, the document will be properly open.But after that if i close the VI and recall them for another pdf document, I cannot open the file ( nothing happens....) or i have an error message:" Could not find Acrobat External window Handler.
How can I resolve this issue., because On my application I have 3 buttons to open 3 differents pdf file and i can only open the first file (corresponding to the selected button).

I will appreciate all your help on this point.

regards
Popo

[Matthew C]

Popo,

Thank you for contacting National Instruments.

I was able to run two copies of your VI on my computer simultaneously without any problem. I was able to open different PDF files in each instance of the VI.

It is hard to say what is causing your problem. If you are using multiple instances of this VI in a top level VI, try making each instance a different file name. I noticed some odd behavior when using multiple instances with the same file name. This odd behavior was corrected by giving each instance a unique file name.

I hope this helps!

Matthew C
Applications Engineer
National Instruments