Sun Wireless Toolkit - ktools.properties?

Hi friends,
Does somebody know how can I change the ktools.properties (placed on C:\WTK21\wtklib\Windows) in order to make the Wireless Toolkit find all the classes it needs in a third party jar file? Actually I don't know if this is the file I need to change.
Let me explain. Siemens devices put all CLDC, MIDP1.0 and proprietary classes in a single JAR file called api.jar. I would like to know how can I set the Wireless Toolkit to use this file instead of the files midpapi10.jar and cldcapi10.jar. In prior versions of the WTK all the classes used in the compilation process were available in a single file calle midpapi.zip and I could rename the Siemens api.jar file to midpapi.zip and everything was ok, but now they are split in configuration and profile jar files. What can I do?
Thanks in advance fellows
Cleverson

I tried to deal with it by ktools.properties but it didn't work. On some tech details about WTK I read that it simply doesn't support proprietary apis.
However, I found a way to get around it. I put api.jar (siemens) in the lib dir. When I create the package, this api is inserted in the midlet.jar . All is left to do is delete the com/* directory from the jar file. Then the program can be run on the phone.
It's a bit messy but I set up macros for these tasks and everything works quite smoothly. And I don't like all these monstrous IDEs so I prefer to work with plain WTK.

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