First my configuration:Labview 8.5.1 / 8.2.1 Visual Studio 2005 standard edition with SP1 now the problem:I have a huge Labview program compiled as dll. Now I'm calling functions of this dll from my C code. This works fine, but at the end when my c program ends with the return from the main function I get sometimes this message: First-chance exception in InterfaceTest.exe: 0xC0000005: Access Violation reading from position 0x03696000.This comes in 40 of 50 tries. I have found out, that this behaviour has something to do with the Labview runtime. I've tried to link the Labview dll dynamical instaed of link it statically and I have seen that there is the same problem.But when I unload the Labview dll and wait until the Labview runtime is closed there comes now error. I also have tryied this 50 times.The Labview runtime needs 11 Seconds to close until the unload of the dll.

LabVIEW

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Hi,

I have no DSC Toolkit installed, but some other NI programs.

The NULL pointer for the LVDLLStatus() function has it's reason here:

My application is not multithreaded, but thx for the link.

Best regards,

Stefan

Message Edited by StefanE on 01-23-2009 09:34 AM

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