Some computer users receive errors that appear to be from the ms09.dll file; such errors may appear for example when booting up computer. The reason for dll errors showing up is that one of the installed applications makes use of the ms09.dll but this is not present on the system or it is corrupted.

The ms09.dll file is actually a portion of Microsoft Office ( the 09 stands for Microsoft Office version 9 ). This dll file is shipped with Microsoft Office and it is NOT redistributable. If you have this problem on your system, then most likely you have an invalid installation of Microsoft Office, or the ms09.dll file is corrupted or missing by some reason.

Users of Win9x operating systems, please note that installing Microsoft Office 2000 on such computers may cause troubles, system instability and even this error showing up. If you are attempting to use Office 2000 with Windows 9x, you'd better stop and upgrade your operating system to a newer version.

To fix ms09.dll errors, first of all see if you have an invalid Microsoft Office installation. Check in Control Panel - Add/Remove Programs to see if Microsoft Office is installed. If it is, uninstall then reinstall it - this should solve the problem. If you do not have Microsoft Office installed any longer, you may want to check your Startup menu; if Microsoft Office is still showing up there, delete it - this should prevent Office from starting when computer boots up.

Since the ms09.dll file is not redistributable (it contains a significant portion of the Microsoft Office program), our website does not provide a download for this file. Also we do not recommend downloading this file from elsewhere, chances are you are not going to solve anything this way. To get rid of the problem, simply try reinstalling Microsoft Office. You may also want to access the Windows Update website to get an updated version of the ms09.dll file for your operating system. It is recommended to get the latest version of the ms09.dll file from the Windows Update website, since the most recent version ensures your computer is protected from the latest security risks discovered, and to get the maximal functionality and bugfixed version. Microsoft Office is one of the products that has received several bug fixes and patches, so make sure you are using the latest ms09.dll file on your system.