So I recently ran into a couple hiccups trying to install Eclipse on Windows 7.
# I downloaded Eclipse and attempted to install and was prompted with this error.
A Java Runtime Enviroment(JRE) or Java Developmet Kit(JDK) must be available in order to run Eclipse.No Java virtual machine was found after searching the following locations: C\:Users\User\Desktop\eclipse-java-helios-SR1-win32\eclipse\jre\bin\javaw.exe in your current PATH.
Not having Java installed I headed over to Java.com and downloaded the 32-bit version of Java, edited my PATH environment variable and tried again. This time I received an
Unable to load *.dll error so after more google searching I read somewhere there are issues if you install the 64-bit version of Eclipse, you need to install the 64-bit version of Java.
Headed back over to java.com with IE (64-bit) and was able to download the 64-bit version of Java. Installed it and had no errors installing Eclipse.