Eclipse installation - what am I doing wrong?

I am trying to install eclipse - I unpacked the downloaded zipped folder and unpacked it to a director on my C drive - when I try to run the IDE I get the error message attached - the log file has the text below: Help please.
!SESSION 2010-04-22 09:35:48.017 -----------------------------------------------
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_GB
Command-line arguments:  -os win32 -ws win32 -arch x86

!ENTRY org.eclipse.osgi 4 0 2010-04-22 09:35:48.425
!MESSAGE Application error
java.lang.IllegalStateException: Unable to acquire application service. Ensure that the org.eclipse.core.runtime bundle is resolved and started (see config.ini).
      at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at org.eclipse.equinox.launcher.Main.invokeFramework(
      at org.eclipse.equinox.launcher.Main.basicRun(

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"Hello, With some inspection, I came to the conclusion that the default config.ini file generated by Eclipse 3.4 during an RCP product export is not complete. In essence, there are osgi bundles missing from the osgi_bundles= line. I compared the versions generated by 3.3 and 3.4 and the org.eclipse.equinox.common@2:start,org.eclipse.update.configurator@3:start,org.eclipse.core.runtime@start parameters are missing. I changed the original 3.4 config.ini from #Product Runtime Configuration File osgi.splashPath=platform:/base/plugins/com.matrox.fdk.core eclipse.product=com.matrox.fdk.core.product osgi.bundles.defaultStartLevel=4 *_osgi.bundles=org.eclipse.equinox.transforms.hook@4_**_ _* to #Product Runtime Configuration File osgi.splashPath=platform:/base/plugins/com.matrox.fdk.core eclipse.product=com.matrox.fdk.core.product osgi.bundles.defaultStartLevel=4 *_osgi.bundles=org.eclipse.equinox.transforms.hook@4,org.eclipse.equinox.common@2:start,org.eclipse.update.configurator@3:start,org.eclipse.core.runtime@start_**_ _* and everything works as expected. "

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