The l1wusf.dll file is a component of Lotus 1-2-3 created by the Lotus Development Corporation. Lotus 1-2-3 is one of the oldest programs for personal computers, and has been released in many different versions and as part of an office productivity suite. Lotus 1-2-3 is used to produce spreadsheets. An error with this dynamic link library file may impact your ability to use Lotus 1-2-3 and possibly interfere with the workings of other Lotus products installed on your computer. You should clean your registry to solve this issue.
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