<div>
<blockquote>
I want to make a Window executable program which cannot be decompiled with reverse engineering tools.
</blockquote>
<br />
You will never find this. Even if the code is protected, the runtime code cannot be, and can be reverse-engineered.
</div>


> I want to make a Window executable program which cannot be decompiled with reverse engineering tools.


You will never find this. Even if the code is protected, the runtime code cannot be, and can be reverse-engineered.

<div>
As long as the class files(jar) are stored somewhere on the machine , ppl can always use a decompiler and try to reengineer.
</div>


As long as the class files(jar) are stored somewhere on the machine , ppl can always use a decompiler and try to reengineer.

<div>
A Java obfuscator is your closest bet now , but it has its own headaches.
</div>


A Java obfuscator is your closest bet now , but it has its own headaches.

<div>
<div class="content wysiwyg-content">
I want to make an executable program with jar and a setup program with it.<br />
I used to use Jsmooth and NSIS. I have seen Launch4J and other tools.<br />
Which is the best one? <br />
<br />
I want to make a Window executable program which cannot be decompiled with reverse engineering tools.
</div>
</div>


I want to make an executable program with jar and a setup program with it.
I used to use Jsmooth and NSIS. I have seen Launch4J and other tools.
Which is the best one? 

I want to make a Window executable program which cannot be decompiled with reverse engineering tools.

executable java program and installation package

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Thousands of different programming languages have been created, mainly in the computer field, and many more still are being created every year. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning). Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard), while other languages (such as Perl) have a dominant implementation that is treated as a reference. Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common.

Programming Languages-Other

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.