The Oracle Host command locks up XP occasionally after returning from LabVIEW app.

[sfrosty]

Here's the scenario:
The Oracle Host command calls a LabVIEW exe I created called LVSMS.exe. LVSMS than calls a Campbell Scientific app called SMS.exe that reads data from a storage device through the serial port COM1. SMS is closed by LabVIEW through the use of the SMS app pull down menu using keystrokes generated by LabVIEW keystroke commands. The data obtained by SMS initially gets stored to the local drive and is than copied to the network. LabVIEW than exits. Upon exiting LabVIEW and returning to Oracle control under the Oracle HOST command which is running in the background the whole time, WinXP will occasionally lock up.

[Evan]

I am not real sure how to help you on this.
Is there a way you can narrow down where the behavior occurs? Right now you have so many differnt variables it seems almost impossible to answer your question. Here are some suggestions that may help narrow it down.

If you run the LabVIEW executable to your SMS.exe, does it ever lock up XP? If you call a simple LabVIEW exe from the Oracle host, does that lock it up? Do you see this with any other applicaiton over the Oracle host? Does it matter if you call it from 2000?

[sfrosty]

Thanks. WinXP only locks up when returning from LabVIEW to Oracle. The app is running on 12 computers 2,000 miles away. I found out that 4 of the 12 have locked up. I'm still working on determining if the lock up happens on 4 specific computers or if it's random. It never locks up on my development machine which is supposed to be identical to the machines at the other facility. I've changed timing intervals between when the Campbell SMS.exe program closes and when the LabVIEW LVSMS.exe program closes, and changed the WinXP performance properties. We're evaluating the results now; the process is used only once every 4 hours, so evaluation is slow. The Oracle HOST command appears to be the culprit. Haven't tried it from Win2000, but my WinXP development system
works flawless.

I'm hoping for information regarding the Oracle HOST command and WinXP. Posssibly what to tweak.

Shooting in the Dark! Thanks for your response!