" because ther is no lpt1 port availabe in a new motherboard is their any other way to fix this matter "
Thery big number of new motherboards (Check with you local hardware providers) from "Intel" (DH77KC, DH77EB), "ASUS" and "Gigabyte" (GA-H77M-D3H, GA-H77M-D3H) with last chipsets have onboard Parallel Port (via Internal Header). But not have external connector (LPT bracket 26pin to 25pin).
You need one like this from the list
http://www.ebay.com/sch/i.html?_odkw=LPT+connector&_sop=15&_osacat=31491&_from=R40&_trksid=p2045573....
for each motherboard.
Simple install in Windows XP 32bit and Windows 7 32bit.
Need only run in compatibility with Windows 2000 and "run as administrator" in Windows 7
You need update hardware lock (plug) driver for Sentinel from new support site: http://c3.safenet-inc.com/display_results_google.asp?DocId=19141
In Windows 7 64bit and Windows 8 64bit - need more "tricks". Replace setup.exe (for 32bit program this file build as 16bit application) with this http://toastytech.com/files/Is3Engine.zip. Also run in compatibility with Windows 98 (Windows 8 not have option for Windows 2000) and "run as administrator". But You not have option to install serivis pack and express update. After first installation need only copy all AutoCAD folder and Autodesk Shared from another, updated, XP computer or installed in XP mode, Virtual PC or VMWare mashine.
This Intel Workstation board include Back Panel LPT connector:
http://ark.intel.com/products/59043/Intel-Desktop-Board-DB75EN
This Gigabyte boards also have Back Panel LPT Connectors
http://www.gigabyte.us/products/comparison/list.aspx?ck=2&pids=4152,4151,4195
Thank You
Please mark this response as "Accept as Solution" if it answers your question.
Boris S.