Method to time an unresponsive exe

Dear Experts.
I have a vb6 application that uses web service calls. Occasionally, on various systems, this app will become non-responsive. It never recovers and user must kill in Task Manager and restart.

I'd like to find an external service/product that initiates time at the beginning of the service call, and tracks how much time it takes until service responds. If a threshold is exceeded, I'd like the external timer to alert user and offer an 'abort' option on the service call.

I'm willing to build my own but am not sure of the best method. Samples would be welcome.

Thank you
klheitz
k heitzsoftware developerAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Martin LissOlder than dirtCommented:
Could you show your web service call code please?
0
k heitzsoftware developerAuthor Commented:
Hi MartinLiss ~
The plot thickens:

After more analysis I've found the hang must be happening w/n the exe (vs. w/ the service call). I write out a data file directly before calling the service and have found the offending line was not in that file.

This indicates the hang happens before ever getting to that point.

This changes my request to a service/method that can ID which routine my .exe is hanging in. I have error processing thru out the exe to output errors as well as send up a prompt on errors ~ but this appears to be some kind of infinite loop.

It doesn't happen consistently or on any given usage; and (just to complicate things) seems only to happen on systems using the service calls ~ one other potential clue is when a given system hangs, it is when the services/online d/b are being hit by multiple systems.

I'm wondering if it is somehow related to CPU or memory usage - and if there's any way I can track - and possibly circumvent - perhaps some way to tell my exe to wait til there's a certain amount of CPU or mem free before continuing (?).

I've attached a sample of my service call codes w/ some add'l information in a .doc if you find them useful.

Thanks for you help!
ServiceCall.doc
0
eemitCommented:
Hi klheitz,
MSXML2.XMLHTTP does not support timeouts.
You can try some workarounds e.g.:
MSXML2.XMLHTTP with a TimeOut Value

Try to use:
Msxml2.ServerXMLHTTP, winhttp.dll, wininet.dll or winsock API-s instead
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
eemitCommented:
Hi klheitz,
Was this helpful?
Do you need more information or help?
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Visual Basic Classic

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.