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Dynamic .NET TWAIN: License does not exist or is invalid

For Dynamic .NET TWAIN v6.x and lower versions only, for V7.x+ please refer to http://developer.dynamsoft.com/dnt/kb

Symptom:
You are trying to use Dynamic .NET TWAIN and are seeing the error: Your Licenses number for the "Module name" doesn't exist or it's invalid.


Solution:

For .Net TWAIN 6.0 and above

For core SDK and add-ons except barcode reader

Define the license key in your code as follows:

dynamicDotNetTwain1 = new DynamicDotNetTwain("XXX;YYY");

For barcode reader add-on


Please refer to this KB.

For .Net TWAIN 5.x and below

1. Delete the .licx file from the project.
2. Define the license key in your code as follows:

dynamicDotNetTwain1 = new DynamicDotNetTwain("XXX;YYY");


For any questions, please contact support[at]dynamsoft.com




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Last Updated
16th of November, 2015

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