How to add dll file in a Jar to create executable file

Question

Hi All!
I have one Java file which use one Jar file & three dll file.
I create jar file as described in java tutorial
http://java.sun.com/docs/books/tutorial/deployment/jar/appman.html
1) I created Manifiest.txt by writting :
Class-Path: C:\Flasher\jflashtrial\JFlash.jar
Main-Class: Flaher2
2) I create jar file by:
jar cfm MyJar.jar Manifest.txt *.class
It create MyJar.jar successfully.
After that I used Jar2Exe Wizard to create Myjar.exe
It also create MyJar.exe file, but when I tried to open It , It did open & also didn't give any error message too.
Before this I created one exe file by the same way except; that file does not using any dll or jar file so for that I create my jar file by simply without using Manifest.txt
I wrote:
jar cf MyJar.jar *.class
After that I creat it's exe bu using Jar2Exe, It create its exe file & it's work well.
So for my next try with one jar file & three dll file, what is wrong ?
I saved my exe jar file & dll filea file in a same folder. But still have a problem .
What I did wrong/skip in creating Jar file.
Your any help regarding this topic would be appreciated
Kirti

Answer 1

Hello,
Getting all of this to work right is a bit of a challenge. I haven't used jar2exe at all, but we have a number of native libraries that we support that have to use dll's. I would recommend adding a static initializer like
public class flup {
static {
try {
System.loadLibrary("flup"); // will look for flup.dll in the %PATH%
} catch (Exception e) {
e.printStackTrace();
This should give you a little more information about what is failing. Chances are the dll's are not in the PATH. You may be able to get around this by using regsvr32 to register the Dll's but I have had mixed results with that solution.
You also may be able to write a simple c++ program that uses the dll's (or maybe you already know of one) and use the "depends.exe" program from Microsoft's Platform SDK to examine the full dll dependency tree if you continue to have problems.
Best of Luck,
Andrew