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Troubleshooting installation and technical problems with the Physical Chemistry ebook

Physical Chemistry Ebook does not work on Windows 8: Solution

Windows 8 has upgraded to  .Net 4.0. The ebook needs the older version of .Net to be installed, to work  on windows 8. Our development team is working to upgrade the installer. We hope to have the upgrade out soon.

In the meantime, here are a few steps that will help you resolve the issue

  1.  Upon download of MCHPDFViewer.exe  you get a warning that the file “is not commonly downloaded and may harm the computer”. You can ignore and ‘View Downloads’
    Error 1

  2. In the “Downloads” folder (or where you downloaded the file), double-click MCHPDFViewer.exe . You will get an error that mentions that the application is blocked.

    Physical Chemistry ebook on windows 8 -2

  3. In order to unblock the application, right-click the executable and select “Properties”. Within the Properties dialogue, select “Unblock” and press the OK button.
    Physical Chemistry ebook on windows 8 - 3
  4. Now that the installer is unblocked, we can double-click the application to start installing. You will receive another error message indicating that the program requires .NET version 2.0.
    Physical Chemistry ebook on windows 8 - 4Selecting “Yes” from dialogue brings you to the .NET 4.0 web installer which is not compatible with version 2.0.
  5. In order to download .NET 2.0 visit the control panel and select “Programs” > “ Turn Windows Features on or off”. From within the window that opens, select to install “.NET framework 3.5 (includes .NET 2.0 and 3.0)”
    Physical Chemistry ebook on windows 8 - 5
    After selecting .NET 3.5 and pressing OK, the feature is installed.
  6. You can now double-click the MCHPDFInstaller.exe and it installs successfully.
  7. You will now be prompted to launch your ebook with your serial # and should have no further problems with running the ebook on the windows8 OS.


ERROR: “The operation has timed out” or “The underlying connection was closed: An unexpected error occurred on a receive”

Able to load the physical chemistry text book but while reading the book you get  12-20 pop up messages stating either “The operation has timed out” or “The underlying connection was closed: An unexpected error occurred on a receive”. After each of the two messages come up numerous times, the program shuts off and you have to go back and restart the textbook.
This is a .NET error as described in this knowledge base article from Microsoft.
a) Download and install all the latest updates for your Windows  OS from
b) Make sure your internet connection is reliable. If you are using a wireless connection, it may be dropped by your router intermittently. A better router may fix the issue. Alternatively you can also try connecting the laptop/computer directly to the router via an ethernet cable.
To ensure that we can investigate the issue  to see if we can do anything else on the software side we have logged bug #122.

ERROR: “RegisterFree has stopped working”


You can browse through the chapters of your Physical Chemistry book but you get a message saying ‘RegisterFree has stopped working” which causes the ebook to close down.
This rare error, usually happens on windows vista OS.


Update your Windows/Vista OS by downloading and installing the latest service packs or upgrades for Windows/Vista from

Try our bestselling undergraduate Physical Chemistry courseware

Thermodynamics Module - Physical Chemistry
Thermodynamics module
Chapters 1 to 6 of Physical Chemistry - Laidler, Meiser, Sanctuary

Includes multimedia that opens on relevant pages and allows the student to visualize many of the concepts by varying parameters and plotting different graphs. Things students often have difficulty with, such as isothermal, isobaric, isochoric and adiabatic process, are clearly visualized.

Get it from: Thermodynamics Module - Physical Chemistry

Physical Chemistry - Laidler, Meiser, Sanctuary
Physical Chemistry textbook
by Laidler, Meiser, Sanctuary

This popular Physical Chemistry text book is now available in electronic format. We have preserved much of the material of the former hard copy editions, making changes to improve understanding of the concepts in addition to including some of the recent discoveries in physical chemistry. Many chapters have new sections and the coverage of several chapters has been greatly expanded.

Get it from: Physical Chemistry - Laidler, Meiser, Sanctuary

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