An error with the l1wsef.dll file probably indicates an issue with Lotus 1-2-3 from the Lotus Development Corporation. This file belongs with the version of Lotus 1-2-3 that ships with the Lotus SmartSuite application. Lotus SmartSuite is an office productivity set of programs that has been marketed to businesses. Lotus 1-2-3 is the spreadsheet application that has been bundled with Lotus SmartSuite as well as sold as a standalone program. To repair the problems with this file you may need to clean your registry.
Files on your computer are tracked by the registry database. Windows uses the registry when you run software to find the files it needs to run your programs. If there is a mistake in a registry entry, Windows won’t be able to find the files and your software won’t run. ZookaWare PC Cleaner can solve your registry problems. ZookaWare PC Cleaner cleans up registry mistakes to get your software humming along again. Try a free ZookaWare PC Cleaner scan to see what errors are in your registry.