Why do I get a "...cannot find the required native library..." error when running InstallJava?

If the JLinkNativeLibrary is not in the appropriate location, you will receive an error similar to the following when running InstallJava.

Mathematica 4.1 for Microsoft Windows
Copyright 1988-2000 Wolfram Research, Inc.
 -- Terminal graphics initialized --

In[1]:= <<JLink`

In[2]:= InstallJava[]

J/Link (tm)
Copyright (C) 1999-2000, Wolfram Research, Inc. All Rights Reserved.
www.wolfram.com
Version 1.1

Fatal error: cannot find the required native library named JLinkNativeLibrary.
Exception in thread "main" java.lang.UnsatisfiedLinkError: MLOpen
        at com.wolfram.jlink.NativeLink.MLOpen(Native Method)
        at com.wolfram.jlink.NativeLink.<init<(Unknown Source)
        at com.wolfram.jlink.MathLinkFactory.createMathLinkGuts(Unknown Source)
        at com.wolfram.jlink.MathLinkFactory.createMathLink(Unknown Source)
        at com.wolfram.jlink.MathLinkFactory.createKernelLinkGuts(Unknown Source)
        at com.wolfram.jlink.MathLinkFactory.createKernelLink(Unknown Source)
        at com.wolfram.jlink.Install.main(Unknown Source)

To correct this issue, it will be necessary to move the JLinkNativeLibrary to a location where the Java runtime can find it. Instructions for accomplishing this on various platforms can be found in the J/Link Help Browser documentation via Add-ons > J/Link > Installation.

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