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Explains how to use a password protected .zip file to distribute instructor materials for a Connexions collection used as a textbook for a course.

Instructor materials

Publishers, in conjunction with authors, usually create a variety of supplemental materials for a textbook. These materials can consist of:

  • Test Banks
  • PowerPoint Presentations
  • Additional Problems and Exercises (not included in the textbook)
  • Solutions for Textbook and Supplemental Problems and Exercises
  • Other items

Because these materials usually include solutions, publishers usually deliver this item via a CD that is available only to professors or instructors. Connexions authors that create a collection that will be used as a textbook for a course desire to deliver the publisher equivalent of instructor materials. The ability to distribute these materials via a Connexions module is hampered by the open Creative Commons Attribution License of CC-BY that the Connexions Project uses. The problem: How can we distribute instructor materials?

Distribution solution

Create a module that contains a password protected .zip file. Make the .zip file downloadable from a Connexions module. Require, professors and instructors to acquire the password directly from you, the author of the textbook. Direct them to the software needed for unlocking the .zip file.

Create the .zip file

Organize your materials in a folder. We will use “Sample-CNX” for the folder name as the example for this module. I will place a few Microsoft files (Word, Excel and PowerPoint) in this folder and create at least one sub-folder. You should name and create your folder, including sub folders and files as appropriate to your course materials.

Create Zip File

Password protect the zip file

There are several software products available for password protecting files. You should choose a product that is available free of charge for others to use. They will need the software to be able to un-encrypt the .zip folder. We choose: Encrypt Files v1.5 which is available via the link for Encrypt Files at: (External Link) NOTE: If you click on this link you will need to back space the browser in order to return to this Connexions module.

After installing the software we followed the directions to encrypt the .zip file and we used the password of: 1234567890klb

Create a connexions module

We recommend that you do not include the “Instructor Materials” module within your textbook but make reference to the module by name and Connexions module number in the preface to your collection. This will keep the .zip file from being included in the multi-media download .zip associated with the collection that students would normally download.

Make sure to include in this module:

  • the software download information – Included above.
  • the encrypted .zip file – Included below.
  • your email address where professors and instructors can contact you for the password – The password is included above for your convenience.

To download the encrypted .zip folder you would usually provide a link to that file. However, you won’t know what the exact links is until you have created the module. For now use a link similar to the one that follows.

Click to download: Sample-CNX.zip

Building the connexions module and fixing the download link

This module was built from a Microsoft Word document. After we upload the file to build the initial web page, we will also upload the Sample-CNX.zip file to the files area. Once we create the module and have a module number, we will need to fix the link with that module by editing it.

Uploading the File

After you have “Published” the module, check-out the module and edit the module in the “Full-Source Mode” changing the link making sure to use your module number and file name.

Editing the Link


<link document="m33255" version="Sample-CNX.zip">Sample-CNX.zip</link>


<link url="http://cnx.org/content/m33892/latest/Sample-CNX.zip">Sample-CNX.zip</link>

Re-publish the module

You should double check to make sure that everything is working properly by downloading your .zip file and seeing if you can un-encrypt it.

Questions & Answers

how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
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What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
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what is biological synthesis of nanoparticles
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what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
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I start with an easy one. carbon nanotubes woven into a long filament like a string
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I'm interested in nanotube
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Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
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Source:  OpenStax, Ideas and tools for improving connexions modules and collections. OpenStax CNX. Mar 22, 2010 Download for free at http://cnx.org/content/col11184/1.2
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