eclipse - Java was started but returned exit code = 13

Before I begin, I am using a 64 bit OS (Windows 8), 64 bit Eclipse, and what I assume to be a 64 bit JDK since I reinstalled it before this attempt. I've checked out many similar posts on SO over the past few hours, and while I think I've made some progress, none of the solutions seem to be working for me.

My error message:

Java was started but returned exit code=13
C:\Program Files (x86)\Java\jre7\bin\javaw.exe
-Xms40m
-Xmx512m
-XX:MaxPermSize=256m
-jar C:\eclipse\plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar
-os win32
-ws win32
-arch x86_64
-showsplash
C:\eclipse\plugins/org.eclipse.platform_4.3.1.v20130911-1000\splash.bmp
-launcher C:\eclipse\eclipse.exe
-name Eclipse
--launcher.library
C:\eclipse\plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20130807-1835\eclipse_1503.dll
-startup
C:\eclipse\plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar
--launcher.appendVmargs
-exitdata 171c_68
-product org.eclipse.epp.package.standard.product
-vm C:\Program Files (x86)\Java\jdk1.7.0_51\bin\javaw.exe
-vmargs
-Dosgi.requiredJavaVersion=1.6
-Xms40m
-Xmx512m
-XX:MaxPermSize=256m
-jar C:\eclipse\plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar

Here is my eclipse.ini:

-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20130807-1835
-product
org.eclipse.epp.package.standard.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
-vm
C:\Program Files (x86)\Java\jdk1.7.0_51\jre\bin\javaw.exe
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
--launcher.appendVmargs
-vmargs
-Dosgi.requiredJavaVersion=1.6
-Xms40m
-Xmx512m

If there's any other information that would be helpful in diagnosing the situation (path variables?), please do not hesitate to ask. I would really appreciate some help with getting Eclipse up and running.