I'm trying to run the Data Loader from the command line, and am running into problems.  First, I tried running it using as instructed in the Help & Training section.

C:\WINDOWS>java -jar DataLoader.jar
Unable to access jarfile DataLoader.jar

So, I tried specifying the full path.

C:\WINDOWS>java -jar "C:\Program Files\salesforce.com\Apex Data Loader 14.0\Data
Loader.jar"
Exception in thread "main" java.lang.UnsatisfiedLinkError: no swt-win32-3063 in
java.library.path
        at java.lang.ClassLoader.loadLibrary(Unknown Source)
        at java.lang.Runtime.loadLibrary0(Unknown Source)
        at java.lang.System.loadLibrary(Unknown Source)
        at org.eclipse.swt.internal.Library.loadLibrary(Library.java:100)
        at org.eclipse.swt.internal.win32.OS.<clinit>(OS.java:18)
        at org.eclipse.swt.widgets.Widget.<clinit>(Widget.java:66)
        at com.salesforce.lexiloader.process.LexiLoaderRunner.main(LexiLoaderRun
ner.java:53)

Then, I tried to tell it where to find the library.

C:\WINDOWS>java -Djava.library.path="C:\Program Files\salesforce.com\Apex Data L
oader 14.0\" -jar "C:\Program Files\salesforce.com\Apex Data Loader 14.0\DataLoa
der.jar"
Exception in thread "main" java.lang.NoClassDefFoundError: Files\salesforce/com\
Apex
Caused by: java.lang.ClassNotFoundException: Files\salesforce.com\Apex
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: Files\salesforce.com\Apex.  Program will exit.

What the heck am I doing wrong?!