After my more or less monthly re-installation of Windows 8, I came across this little bijou when I was setting up ADT for droid development, ''Failed to load the Shared JNI Library in Windows 8''. The problem was the fact that even though I had assiduously   tried to make sure I only installed the 64 bit Java 7 JDK, I did not have a 64 bit JVM. I installed this from here and it was alright.
Do not forget to setup the paths to the jdk and jre in your environmental variables.
Thats it!