Session Management in BSP applications

Hello,
I habe been developing the following application to send E-Mails from Outlook to SAP WEB AS Abap Stack:
- I have created a COM-Addin in MS Outlook
- When the user clicks on a button, that I have created, the currently marked E-Mail-Message is read
- The E-Mail-Information is analysed
- MS Internet Explorer is dynamically opened by my Outlook application
- A html form is dynamically created
- html form is posted dynamically to a BSP-application
-> Basically what I have is a HTML form, that is posted to a BSP application
I am facing the problem that Web AS is mixing up different sessions:
- I have no user specified for my BSP application, that means whenever a client visits my page a login popup should appear
- I have defined the first page of my web application as stateless
So what I expected was, that whenever my html form is posted to the Web AS, I get a logon popup, and everytime my web page is called a new session is started
Actually MS Internet Explorer and my BSP Web Application are acting differently:
When I post the html form for the first time, the logon popup appears and everything works fine
When I post the html form for the second time WITHOUT CLOSING THE FORMER INTERNET EXPLORER INSTANCE, the LOGON POPUP DOES NOT APPEAR, and the BSP application is using old, wrong data from the former html form
When I CLOSE ALL INTERNET EXPLORER INSTANCES, THE LOGON POPUP APPEARS, and I get the correct information for my BSP application
->
Whenever I have already sent a html form to the application and do not close all internet explorer instances, my BSP application mixes up old data
Whenever I have already sent a html form to the application and CLOSE all internet explorer instances, my BSP application is working fine.
I have the following settings for my BSP application in transaction SICF:
- Logon Procedure: Stanadard
- Anonymous Logon Data:
     Client: 301
     User: [blank]
     Password: [blank]
Does anybody have an idea how to get my application to work correctly?
- I cannot change internet explorer settings as I have many clients and no authorization for that
- I can change (maybe meta data?) the html form
- Are there any settings of the BSP application that I can change, so that my application works fine
Thanks for your help in advance!
Andreas

Hello Sebastian,
Thanks for your answer!!!
Unfortunately I cannot close the brower window via javascript, as my BSP application is not simply one page reveiving the form and sending one response page, but the BSP application consists of more pages (providing search functionalities,...).
I have tried the following:
- I have opened a new Internet Explorer application "IE-application1"
- I have started my MS Outlook application which (dynamically) opened a new Internet Explorer "window2".
- The Mail was saved to SAP
- I closed the "window2"
- I sent another mail to SAP via "window3"
-> SAP was still remembering the session of "window2" and mixed up the session (session info obviously was hold in "IE-application1")
I did not fully understand your answer refering to BSP Application "system" and its page "session_single_frame.htm" together with the source code of "session_single_frame.htm".
What I need is, to tell my startpage "index.htm" the following: Forget every cookie and session and whatever else you have had until now, take the input values of the html form and process them. Is this possible with "session_single_frame.htm"?
Andreas

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Hi,
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