Haven't run into this error myself, but it appears javas zip utility is failing to open one of the installer packages, this could either be an issue with the way Java is installed or a corrupt eclipse installer package, try downloading a fresh copy of the IDE, if that doens't work you'll need to fully unistall Java, reboot, reinstall Java and try running the Eclipse installer again. That should do it unless you have a malware issue of some sort.

1. In \eclipse\plugins folder, I  manually created folder and extracted from jar files.

ex) mkdir com.salesforce.ide.api_24.0.0.201202291629

      %JAVA_HOME%\jar.exe xvf  com.salesforce.ide.api_24.0.0.201202291629.jar

So, I passed errors related to downloaded jar files.

2. To be more clear, I deleted other JDK except only on JDK1.6.0_26.

But I met still "error opening zip"

in workspace\.metadata\.log

>>>eclipse.buildId=M20100909-0800
>>>java.version=1.6.0_26
>>>java.vendor=Sun Microsystems Inc.
>>>BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=ko_KR
>>>Framework arguments:  -product org.eclipse.epp.package.java.product
>>>Command-line arguments:  -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.java.product
>>>
>>>!ENTRY com.salesforce.ide.core 4 0 2012-04-17 09:01:18.500
>>>!MESSAGE
>>>!STACK 0
>>>java.util.zip.ZipException: Exception in opening zip file: D:\ec_361\eclipse\plugins\com.salesforce.ide.core_24.0.0.201202291629\lib\spring-core.jar