Frequently Asked Questions


Q. Why do I have to pay for Tilia?

A. Software costs money to develop and maintain, including periodic or annual license fees for programming software, installation software, third-party components, and this web site. The free version includes all functionality with the Neotoma Paleoecology Database, which is funded by the U.S. National Science Foundation. The paid versions include functionality not ever supported by public funding.


Q. I have three computers, one in my office, one in my lab, and my personal laptop. How many paid licenses do I need?

A. If you are employed by a not-for-profit or academic institution (e.g. university, museum, nature conservancy), the paid license is to you the individual, and you may install Tilia on all computers under your control. Your institution may own the license; however, it must buy a separate license for each employee using the program. For teaching purposes, institutions may purchase a multi-use teaching license, which may be installed on all computers used for teaching, for example computers in a teaching lab. These licenses are not site licenses for multiple employees, If you are employed by a commercial or for-profit institution, each computer must have a separate license.


Q. Can a license and Product Key be transferred?

A. A license and associated Product Key may be transferred to another individual if the institution purchased the license and if the former user is no longer using the software.


Q. I have a version 1.x .til file from DOS Tilia. How can I open it? 

A. Windows Tilia will open version 2 .til files, but will not open version 1 .til files. The only way to open a version 1 .til file in Windows Tilia is to first open the file with version 2 of DOS Tilia and save it, which will save the file in version 2 .til format. Note that DOS Tilia will not run under under 64-bit versions of Windows. However, you can run DOS Tilia with DOSBox or vDos, which are freeware (although a donation or voluntary registration accepted). See this article for more information. You may obtain DOS Tilia from here.

DOS Tilia version 2
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