Software - DL-Windows V5.5.5 (✨Full-LATEST)

This is the LATEST VERSION of DL-Windows V5.5.5 Software - Full Download.

The name of the file is "DL-Windows 5.5.5-20260518.zip" (notice the date "2026 05 18" in the file name denotes the Publication Date, May 18, 2026).

Highlights: This updated version of 5.5.5 includes full Bluetooth support for the iLock and Citywide apps. Gateway communication between different subnets is improved.

May 20, 2026: Improved the "READ ME FIRST" pdf file (located in the root folder).

IMPORTANT: To install the software, click the DOWNLOAD button and save the WinZip file to a folder on your PC. Next, Extract All of the contents of the WinZip file to the same or a newly created folder location (again, be sure to "Extract All").

Before upgrading to this new version, back up and save your existing DL-Windows database!

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Getting Started: For new and upgrade installations, follow the steps outlined in the PDF file "READ ME FIRST" located in the root folder

Note: The DL-WINDOWS Basic User's Guide OI382 and the DL-WINDOWS NETWORX User's Guide OI383 are available.  Review this documentation for help with system requirements, full detailed installation procedures, database configuration and general use of DL-Windows.

See this Technical Note: Virtual Server Machine Support for DL-Windows

If upgrading from 4.1.96 - Use the accompanied "Upgrade Utility" program to upgrade / import the account files from this version. Note: All account files, including the AcctList file must be in the same location.

Click here if unable to connect to the database from a Stand-Alone Setup

Click here if unable to connect to the database from a Workstation to Server Setup

Important:
When upgrading previous versions of DL-Windows with existing Emergency users, only the "Authorization to INITIATE Lockdown" will be enabled after the upgrade to version 5.5.5.  The "Authorization to RESET Lockdown" will require you to select "Enable/Disable as Reset Lockdown User" from the User menu on the Global Users screen.