The version of MDSolids that you download from this site may be used free-of-charge for a 30-day evaluation period. After 30 days, the unregistered software will cease to operate. To continue using MDSolids, you must purchase a registration code. The purchase of a registration code buys you a license to continue using the MDSolids software.

There are two versions of MDSolids 4.x:

Full Version: A registration code for the Full Version of MDSolids costs only $75 US.


Student Version: A registration code for the Student Version costs only $30 US.



Before purchasing a registration code, download and install MDSolids on your machine. Make sure that you are completely satisfied with the software's operation and content before registering. If you decide that MDSolids is useful to you (and I think that you will find it very useful), purchase a registration code. The fee for registration is non-refundable.

SWReg handles all transactions for MDSolids software. Once your transaction is complete, SWReg will send you an e-mail receipt acknowledging the transaction. This e-mail will also include your registration code. You will not receive anything further such as a special version of the software through the US Postal Service mail. (That's why it's important that you are completely satisfied with the software before you purchase the code. I want you to be happy with MDSolids before you buy anything.)




MDSolids Student Version
Registration Code

  Professors and
Educational Institutions:

Contact the author directly for details of a
special registration offer
for professors and educational institutions.

MDSolids Full Version
Registration Code


MDSolids Upgrade
Registration Code







Your registration code must be entered in the MDSolids program. On the Help menu, you will find an item called "Register MDSolids." Click on this item, and then enter your name and registration code in the dialog boxes. The code will remove the 30-day limitation.