The l1wnll.dll file is a piece of Lotus 1-2-3 created by the Lotus Development Corporation. This file is found in the installation software of the Lotus SmartSuite version of Lotus 1-2-3. Lotus SmartSuite is a set of business applications designed to improve office productivity. Lotus 1-2-3 is the spreadsheet program of the set, and has been sold both as part of SmartSuite and as a solo program. This file might be found in either version. If you are getting an error with this dynamic link library file, you may have a problem in your Lotus software. You should clean your registry to fix the issue.
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