Convert a Business Service into a DLL

Hello,
Anyone aware of how a Business Service can be converted into a DLL file?
Actually, my purpose of asking is this: We are developing a Business Service, and we would like to conceal its code. We thought that if it is converted into a DLL, we could use SElib.dynamicLink to invoke it.
Also, how is the code for the Siebel Vanilla BSs concealed? It would be really wonderful if we could do the same with our custom Business Services.
Thanks a lot,
Quipick

Hi Axel,
Thanks for your comments. You said "....Moving a BS code into a DLL I would not recommend.....". Why is this so?
Mainly, I want to know if converting it to a DLL is indeed possible in the first place.
I tried using the code generator to convert it to java. These Java classes I packaged as a Jar file. Then I used the Jbimp utility to try and convert the Jar files to Dll. However the Jbimp utility has some drawbacks and is not sufficient to perform the conversion.
True, my code is not really rocket science :-).
However it is a part of ongoing research efforts, and its my job to see it done :(, or atleast provide reasons why it cannot be done.
These are my questions:
-Is it possible to convert a BS to a DLL. If yes, how?
-How has Siebel prevented access to its vanilla BSs
Thanks,
Quipick

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Imagine this scenario: File-XI-IDOC. There is a file server where files are uploaded by a legacy application. XI polls that directory, converts the file to IDOC and sends it to R/3.
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When a technical system is defined for a product / s/w comp version we also enter the parameter for logical system name. If a buisness system is defined for a technical system then it in turns refers to the technical system with buisness system assigned to it.
Itz lyk linkage of PRODUCT -> S/W COM VERSION -> TECHNICAL SYSTEM (LOGICAL SYSTEM) -> BUSINESS SYSTEM
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Integration Repository.
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Integration Directory:
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I haven't tried exporting individual object from ID so no clue.
Please refer the following link<a href="http://help.sap.com/saphelp_nw04/helpdata/en/93/a3a74046033913e10000000a155106/frameset.htm">Transporting XI Objects</a> .
Hope itz helpfull.
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*RAJ*
*REWARD POINTS IF FOUND USEFULL*

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Receiver is a linux system so I use the FTP-FILE adapter as communication channel.
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Hi,
Addition to the above said by Udo...
for routing the ack back to the sender system you need to create communication channel of type idoc with name as Ack.....
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/f6d2d790-0201-0010-9382-b50b499b3fbe?quicklink=index&overridelayout=true
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