Downloads - NAG C Library - CLW3223DAL

Windows XP/2003/Vista/7 - Intel C/C++ or Microsoft C/C++

Specific download information:

  • For Windows XP/Vista/7 or compatible
  • 32 bit x86 systems and compatible
  • Using Intel C/C++ version 12.1
    or Microsoft Visual C++ version 16.0
  • File size of NAG C Library
    120 MB ; 126,801,749 bytes
  • File size of Documentation
    98 MB ; 102,578,928 bytes
  • NAG Product Code: CLW3223DAL
  • Mark 23


The software is provided as self-extracting executable.
Download it from here (120 MB),
and then run clw3223dal_setup.exe to install the NAG C Library.

For implementation specific information, refer to the Installer's Note and Users' Note.


You can access the documentation on our website.
You also have the option to download the self-extracting executable from here (98 MB),
and then run setup_cl23_manual.exe to install the NAG C Library Manual.

Licence key

To enable the use of your NAG software you will need a relevant licence key. Instructions for obtaining a licence key are included in the products Installer's Notes. Alternatively you can complete the ‘Request a Licence Key’ web form here. If you've already been supplied with a licence key from our Support Desk then you will not need to complete this form/request a key. In the event of difficulty please contact your NAG Technical Support Service.

Trial Request

For more information on trialling NAG software click here

Product Purchasing

The product can be purchased by contacting one of our offices.