# ZipLib can be used to close source software

I have always had a thorough understanding of open-source protocols, and I have always said this to # ZipLib:

[Quote]
He library is released under the GPL with the following exception:

Linking this library statically or dynamically with other modules is
Making a combined work based on this library. Thus, the terms and
Conditions of the GNU General Public License cover the whole
Combination.

As a special exception, the copyright holders of this library give you
Permission to link this library with independent modules to produce
Executable, regardless of the license terms of these independent
Modules, and to copy and distribute the resulting executable under
Terms of your choice, provided that you also meet, for each linked
Independent module, the terms and conditions of the license of that
Module. An independent module is a module which is not derived from
Or based on this library. If you modify this library, you may extend
This exception to your version of the library, but you are not
Obligated to do so. If you do not wish to do so, delete this
Exception statement from your version.

[/Quote]

I have never figured out what is going on. What is it"Derived from
Or based on"? Are private non-GPL projects allowed?

Today, I found the following answer on its Forum:

[Quote]

Yes, you can use the library in a closed source application.
License comes with an exception to the GPL which explicitly allows this.

However,
You will need to link against the compiled assembly. Use and
Modification of the source code require you to publish your code under
The same license.

[/Quote]

Originally, as long as the source code does not use it, it only links its dll during compilation and release, you can select your own protocol for your code-as long as it does not violate the protocol of any other component you are using.

[Update]
It seems that they also think it is necessary to explain it. Now the SharpZipLib homepage has the following instructions:
Bottom lineIn plain English this means you can use this library in your cial closed-source applications.