.net event crashes with Windows 7

[jpsc]

Hi,

I am using an internally developed .net assembly to communicate with some proprietary hardware.  I developed an app in LabVIEW 8.6 and Windows XP which worked as expected.  When I moved to Windows 7 / LabVIEW 2009 I get a crash whenever an event fires.  The dialog that is fired shows "Assertion Failed" and has Abort, Retry, Ignore.   Abort closes LabVIEW.  I have attached a screenshot of the dialog.

I made a very simple test vi, which registers the event.  When then event fires, I still get a crash. 

Any ideas?  This same concept works in C# with the following code:

using Crestron.ActiveCNX;

namespace WindowsFormsApplication4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            
            ActiveCNX cnx = new ActiveCNX();
            cnx.onSerial += new ActiveCNXEventHandler(cnx_onSerial);
            cnx.Connect("192.168.0.30", 3);

        }

        void cnx_onSerial(object sender, ActiveCNXEventArgs e)
        {
            MessageBox.Show(e.SerialValue);
        }
    }
}

Thanks in advance,

John

[jpsc · Accepted solution]

Thanks to shew82 for finding the solution.

http://digital.ni.com/public.nsf/allkb/2AF19EBDFA4AC82D862576B6006E7FE8

Reference to other thread. 

http://forums.ni.com/ni/board/message?board.id=170&message.id=474865&jump=true#M474865 

[The_Chancenator]

Hi John,

Thank you for posting the solution to this thread--it will help others who find this forum find their answer. 

Cheers,