How to force web start to use a specific private JRE without searching reg

I am trying to make webstart start using a private JRE independent of what JREs are installed on the System. I am installing a private JRE in the users home directory, eg
C:\Documents and Settings\USER\Application Data\APP\jreThen starting webstart by calling:
C:\Documents...APP\jre\bin\javaws.exe http://....jnlpThe problem is javaws.exe always scans the regsitry in builds its own list of installed JREs.
I have tried to solve this by setting USER_JPI_PROFILE env var with my own custom cache location and building a custom "deployment.properties" file with just my private JRE in it, but web start always searchs the registry and find and uses a system JRE over mine.
Any Ideas?
Thanks, Jasper

Did you also place a deployment.config file , to point to your deployment.properties file?
In the deployment.properties, specify the location of your custom jre:
deployment.javaws.jre.0.platform=1.5
deployment.javaws.jre.0.registered=true
deployment.javaws.jre.0.osname=Windows
deployment.javaws.jre.0.path=jre\\bin\\javaw.exe
deployment.javaws.jre.0.product=1.5.0_05
deployment.javaws.jre.0.location=http\://myjre.download.location
deployment.javaws.jre.0.enabled=true
deployment.javaws.jre.0.osarch=x86The above properties tag your custom jre, as been downloaded from http://mrjre.download.loaction - This location doesnt have to exist.
In your .jnlp file, specify this download location in the jre tag.

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