lvrt.dll error on Windows XP

[Taher]

I had an application built using LabView 5 on Win98 system and it was running perfectly, I decided to upgrade the system to Windows XP,then, i used Labview Run-Time Engine 5.1.1, i was surprized when the application ran perfectly also (I know that 5.1.1 works only till Win2000!!!), BUT, after 10 to 15 minutes from idle process, i get an error from WinXP saying that there was a problem in my exe file because of (lvrt.dll), when i restart the application it runs OK.
I'd like to add more info:
- The application is using Traditional DAQ Card.
- The application includes ActiveX & Networking.
- I don't have the source code to modify anything.
Any one has a clue what to do to avoid this error????

[Jeremy Braden]

Do you get the error everytime you run your program? Since you cannot edit your code, you might try reinstalling the drivers and the LabVIEW RTE. There is not really a whole lot to be done for troubleshooting because of the lack of source code. You might see if you can transfer the application back to a 98 machine if nothing else helps.

[Taher]

Thanks Jeremy, But i have to use a powerfull machine with high configuration, the processor of the machine is 800 MHz Bus Speed, which the 98 can't run on, so i have to use either 2000 or XP, i forgot to tell you that on 2000 i get an error when i try to start the application and when i click ok, it runs perfectly !!!! kind of complicated isn't it????
I can't come up with a solution, can any one????!!!!