How to run DavMail without Java installed?

[Kunal]

I'm on Windows 7 SP1, 32-bit/x86, and I don't have Java "installed". That is, I have Java 1.6.0_45 (JDK & JRE) in a folder, but not in the registry. In effect, my Java is a portable version.
I've set JAVA_HOME, PATH to JDK\bin and CLASSPATH as my environment variables, but DavMail refuses to run, giving me the error "A suitable version of Java could not be found on your system".
How can I run DavMail in this case?
Thanks in advance.

[Mickael Guessant]

You may try to create a davmail.ini file in davmail.exe directory with the following content, adjust vm.location to your JDK path :
main.class=davmail.DavGateway
classpath.1=davmail.jar
classpath.2=lib/activation-1.1.1.jar
classpath.3=lib/commons-codec-1.3.jar
classpath.4=lib/commons-collections-3.1.jar
classpath.5=lib/commons-httpclient-3.1.jar
classpath.6=lib/commons-logging-1.0.4.jar
classpath.7=lib/htmlcleaner-2.2.jar
classpath.8=lib/jackrabbit-webdav-2.4.3.jar
classpath.9=lib/jcharset-1.3.jar
classpath.10=lib/jcifs-1.3.14.jar
classpath.11=lib/jdom-1.0.jar
classpath.12=lib/log4j-1.2.16.jar
classpath.13=lib/mail-1.4.3.jar
classpath.14=lib/slf4j-api-1.3.1.jar
classpath.15=lib/slf4j-log4j12-1.3.1.jar
classpath.16=lib/stax-api-1.0.1.jar
classpath.17=lib/stax2-api-3.1.1.jar
classpath.18=lib/swt-3.7-win32-x86.jar
classpath.19=lib/woodstox-core-asl-4.1.2.jar
classpath.20=lib/xercesImpl-2.8.1.jar

vm.version.min=1.6
vm.location=path/to/jvm
vmarg.1=-Dsun.net.inetaddr.ttl=60
vmarg.2=-XmX512M

[ErrorMessages]
java.not.found=A suitable version of Java could not be found on your system, please install Java from http://java.com
java.failed=Java failed to startup successfully, please install Java from http://java.com