Here is the answer which I have conducted in MALTAB forum, suitable for any toolbox. 

The process for installing new toolboxes into MATLAB is the same as installing MATLAB itself. The MathWorks installer handles the installation of all MathWorks products, including MATLAB and MATLAB toolboxes.

MATLAB must be closed in order to run the installer. Toolboxes must match the release they are installed into; e.g. you cannot install a toolbox for R2014b into MATLAB R2015a.

If you are using MATLAB R2013b or earlier, you will need to redownload the installer to install additional toolboxes. Later versions of MATLAB will automatically download the new toolboxes when you start the installation. The MATLAB installer can be downloaded here:https://www.mathworks.com/downloads/web_downloads/.

Log in if you are not already logged in. Underneath Licensed Products and Updates, click "Download." Select the release of MATLAB you want to use and select the operating system you are using. The download will begin after you select your operating system.

The MATLAB DVD contains all MATLAB toolboxes, and no download is required if you are installing from a DVD.

Note: if this is network license, the license manager must be updated as well. See this article for more information: http://www.mathworks.com/matlabcentral/answers/178243.

For MATLAB release R2008a or later, the installation is the same as the process you followed to install your original products. The instructions for this process can be found here:

http://www.mathworks.com/help/install/standard-installation-procedure.html

The MATLAB installer will attempt to install the new toolboxes in the default MATLAB installation location. If you have installed MATLAB somewhere else, you will need to point the installer at your MATLAB installation directory to install the new toolboxes into your existing MATLAB instance. When installing you may be prompted to overwrite any existing products. If prompted, choose not to overwrite any existing products.

Note: if the computer is not connected to the internet and you are using a File Installation Key to install the toolboxes, you will need to obtain an updated File Installation Key. See this article for instructions on obtaining an updated File Installation Key: http://www.mathworks.com/matlabcentral/answers/102845.

For releases prior to R2008a, see the directions below for your operating system:

Windows:

Start the installer using the downloaded installation files or MATLAB installation media.

Provide the updated PLP when prompted. If you are prompted to provide a license file, you can point to the updated license file from the server, or point to the file: $MATLAB\bin\win{32|64}\license.dat

When prompted for a typical/custom installation, choose the custom option.

Select only the additional toolboxes and complete the installation.

If you do not have the updated passcodes for the new toolboxes, you access these codes from "Passcodes" tab of the License Center here:

http://www.mathworks.com/licensecenter

Alternatively, you can obtain the new passcodes by contacting MathWorks Support here:

http://www.mathworks.com/support/contact_us/index.html

Unix/Linux:

If the license manager is running locally on your machine, stop the license manager by opening a terminal window and use the command: $MATLAB/etc/lmdown

Open the license.dat file located in the $MATLAB/etc directory using a text editor and replace the old license information (#BEGIN---cut here to #END---cut here---CUT) with the new license information. If your new license file does not include SERVER and DAEMON lines, be sure to leave these original lines in the license file.

Start the installation from either the downloaded installation files or MATLAB installation media.

If the license manager is running locally, restart the license manger using the following command: $MATLAB/etc/lmstart

You should now be able to access your additional toolboxes. If these tools show up, but you are unable to access the license, see the solution here:

http://www.mathworks.com/support/solutions/en/data/1-1941P/index.html

Mac OS X:

Start the installer using downloaded installation files or MATLAB installation media.

When prompted for the license information, replace the existing license with the updated license file that includes the new toolboxes.

When prompted for products to install, select only the additional toolboxes and complete the installation.

If you are unable to install the additional toolboxes, please contact MathWorks support:

http://www.mathworks.com/support/contact_us/

I hope it could help you/

un can enclose the path in matlab by saving path .

also just follow the instruction.in that tollbaox.its very simple

I follow the instructions but there is something going wrong. an error message appears each time when i replace the files of matlab with file of toolbox.

Hi

You can installing it by copying folder containing your toolbox to safe place (it can be any folder) and then adding that folder to matlab paths (file->set path->add folder (or add with subfolders)->save->close)

Good luck...