I would use caution about keeping the expired Trial version hanging loose on your machines. Autodesk Compliance Dept does not view this favorably. They nailed a company they audited and wanted them to pay for keeping the expired Trials on their machines. Their purpose was the same, use the Trial as a Viewer. according to EULA 8. Evaluation/Demonstration/Trial. If Autodesk identifies the License Type as a “demonstration”, “evaluation”, “trial,” “not for resale” or “NFR” version (each, an “Evaluation License”) in the applicable License Identification, Licensee may Install a copy of the specific release of the Licensed Materials designated in the applicable License Identification on one (1) Computer, subject to certain functional limitations described in Section 6.3 (Affected Data), on a Stand-alone Basis, and permit Access to such copy of the Licensed Materials, solely by Licensee’s Personnel, solely for Evaluation Purposes, only so long as the maximum number of concurrent Authorized Users does not exceed one (1), and only from Licensee’s work location. An Evaluation License is for a fixed term specified in the applicable License Identification. If no such term is specified, the term is thirty (30) days from Installation or as otherwise authorized in writing by Autodesk. 8.2 Effect of Termination of Agreement or License. Upon termination or expiration of this Agreement, the licenses granted hereunder will terminate. Upon termination or expiration of any license granted to Licensee, Licensee must cease all use of Autodesk Materials to which such license applies, any Subscription (including, without limitation, associated services), and any Services and Uninstall all copies of the Autodesk Materials. At Autodesk’s request, Licensee agrees to destroy or return to Autodesk or the Reseller from which they were acquired all Autodesk Materials. Autodesk reserves the right to require Licensee to show satisfactory proof that all copies of the Autodesk Materials have been Uninstalled and, if so requested by Autodesk, destroyed or returned to Autodesk or the Reseller from which they were acquired. If Licensee’s Subscription is terminated or expires, but this Agreement and Licensee’s license to the Licensed Materials remains in effect, any rights of Licensee based on the Subscription (including, without limitation, rights with respect to Previous Versions) will terminate, and (unless otherwise authorized by the Subscription Program Terms) Licensee must comply with the obligations of Section 1.2.1 (Effect of Upgrades) with respect to (including the obligations to cease use of, Uninstall and destroy or return) all copies of such Previous Versions