Moving the License Code File

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When the TN3270 Plus license code is entered, it is stored in the tn3270.ini file. The default location for the tn3270.ini file is in the /SDI/TN3270 Plus/ sub-folder in the Windows common application data folder. Here is the default folder location for the different Windows operating systems:


C:\ProgramData\SDI\TN3270 Plus\


C:\Documents and Settings\All Users\Application Data\SDI\TN3270 Plus\

If you wish to store the tn3270.ini file in a different folder you can add one of the following string value registry entries and set its value to the full path to the folder you want to contain the tn3270.ini file:

HKEY_CURRENT_USER\Software\SDI\TN3270 Plus\Configuration\LicenseCodePath\

HKEY_LOCAL_MACHINE\Software\SDI\TN3270 Plus\Configuration\LicenseCodePath\

The HKEY_CURRENT_USER entry only affects the current user. The HKEY_LOCAL_MACHINE entry affects all users on the PC. If entries are specified in both locations the HKEY_CURRENT_USER entry takes precedence.

Windows 11, 10 (64 bit), 8 (64 bit), 7 (64-bit), Windows Server 2022, 2019, 2016, 2012, 2008 (64-bit)

If you are running a 64-bit version of Windows, use:


instead of:


TN3270 Plus is continually being improved. To learn more about the latest enhancements, please review our Version History web page.