The file i18nregexpmsc.dll is a key component of OpenOffice from Sun Microsystems, Inc. This is a part of the core functionality of OpenOffice.org, and should be located in the program folder. OpenOffice is an open source software suite with programs similar to Microsoft Office. Because it is open source, OpenOffice is free to use and is updated as part of a group effort. New versions of OpenOffice are regularly released.
If you are running OpenOffice on your computer, this file is necessary for the continued operation of the software. This file may also be part of other programs due to the open source nature of the code. In either case, an error with this file may indicate a problem in your Windows registry.
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