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Windows application responding to wrong user account through socket

Hi Experts,

I have an issue where I have a simple application that exposes a web server for inter-process communication.  This application is meant for a single user to make requests to it.  It is not a windows service.

If someone logs out, no problem.  The application is shut down and so the web server goes away.  But if someone uses the user switching functionality - the application remains and will respond to requests that come in on that port from a separate user account.

How can I fix this?

Thanks for any ideas!
Mike
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thready
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thready
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1 Solution
 
sarabandeCommented:
your webserver could register to receive a WM_WTSSESSION_CHANGE message.

see
http://msdn.microsoft.com/en-us/library/windows/desktop/bb776893(v=vs.85).aspx

then it could end or deny requests until the user was switched back.

Sara
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threadyAuthor Commented:
Thanks Sara, you're brilliant as usual.  But I forgot to mention another thing.  It's also possible to have terminals connected where 2 users are actively using the machine.  What about that scenario?
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sarabandeCommented:
you probably need to establish two webservers one for each account. the webservers then would need an own port to listen for each account. you may define a user environment variable for the port and pass it to web server at creation time.

Sara
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threadyAuthor Commented:
Thanks
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threadyAuthor Commented:
Hi again Sara,

I'm looking again at your first comment - do you know if the session state change event for WM_WTSSESSION_CHANGE is always WTS_CONSOLE_DISCONNECT and WTS_CONSOLE_CONNECT for when the user switches?
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