If you get the following exception while trying to open Eclipse on Windows 7 version;
Failed to load JNI shared library “Program Files (x86)\Java\jdk1.6.0_20\jre\bin\client\jvm.dll”
You need to download the correct (Bit Architecture) version of Eclipse program.
Your jdk architecture (32 or 64) of the Java and the Eclipse architecture should be the same.
If you are using the 32 Bit Architecture of Java, you have to Download 32 bit Eclipse version or if you are using 64 bit version of Java you have to download the 64 bit version of Eclispe program.