Applets load very slowly on 64bit Windows 7 using 64 bit Java

Hi
We have an applet that was very quick to load under windows XP. Some of our users are now using the 64 bit Windows 7 Operating system with 64 bit Java runtime environment and this applet takes up to 20 seconds to load.
These machines have both the 32 bit and the 64 bit versions of Java loaded. JAVA_HOME is set to C:\Program Files (x86)\Java\jdk1.6.0_26 and the PATH has %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin; at the start.
I noticed on Windows XP that there was a Java Quick Starter service which is not present in Windows 7. I assume Windows 7 has it's own optimised java loader (which obviously insn't working) as the Control Panel -> Java -> Advanced -> Miscellaneos -> Java Quick Starter is greyed out.
I've noticed that jqs.exe does not exist in the bin directory, and there is no C:\Program Files\Java\jre6\lib\deploy\jqs directory.
So the bottom line is...How do I get my applet to load faster in 64 bit environments?
Thank you in anticipation
Richard

JQS could not explain 20s startup. This must be something related to network - either config issue (e.g. DNS timeouts) or too many nework connections on launch?
Enable tracing and java console, add
deployment.trace.level=all
to deployment.properties and see what is happening and where applet seem to stuck.
Compare to 32 bit case.

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