Eclipse install for Java EE not working in windows vista 64 bit

[Chowrasia Hp]

I am trying to install Eclipse 3.5.0 EE IDE on my Windows Vista 64 Bit
After I download and extract Eclpse and click on the install icon,
it shows a long pop up message with the below error,
jvm terminated. Exit code = -1
-Dosgi.requiredJavaVersion = 1.5
-Xms40m
-Xmx512m

I tried by installing jdk1.5.0_20 and (jdk1.6.0_16 & jre6), still i am
getting the same error pop up window.

Also i tried to set the below path in eclipse.ini that can alter the
"default" JVM for the system

-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vm
C:\Java\JDK\1.5\bin\javaw.exe
-vmargs
-Xms40m
-Xmx512m

After the above changes when i tried to open the eclipse icon, nothing
is open, i am not sure what happening internally,

please suggest me how to resolve the above error and advise exact version's for Windows
vista 64 , to run the eclipse.

[saurav sarkar]

try using the below config
point to your javaw.exe.
Make sure you have -Dosgi.requiredJavaVersion also set in your config file.

-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256M
-framework
plugins\org.eclipse.osgi_3.4.3.R34x_v20081215-1030.jar
-vm
C:\Program Files\Java\jdk1.6.0_11\bin\javaw.exe
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xmx512m
-Xms128m
-XX:PermSize=32m
-XX:MaxPermSize=384m

[Peter Johnson]

You must use a 32-bit JVM to run Eclipse in a 64-bit Windows environment. The eclipse.exe executable is a 32-bit executable and thus requires the 32-bit jvm.dll. The -vm setting in eclipse.ini must point to the 32-bit JDK (you can reference either java.exe, javaw.exe, or event the jvm.dll directly).