<div>
you might want to reboot in the Safe mode (press F8 while booting) and try to replace the file (or boot into another OS if you have dual-boot). <br />
<br />
you can get the file from many sites, just google &quot;RICHED20.dll download&quot; and pick a site that's free.<br />
<br />
System Restore is also worth a try, assuming that you know the approximate date this problem started happening.
</div>


you might want to reboot in the Safe mode (press F8 while booting) and try to replace the file (or boot into another OS if you have dual-boot).

you can get the file from many sites, just google "RICHED20.dll download" and pick a site that's free.

System Restore is also worth a try, assuming that you know the approximate date this problem started happening.

<div>
<div class="content wysiwyg-content">
Recently, I've been receiving all kinds of error messages regarding the riched20.dll file in the c:\windows\system32 directory. &nbsp;I want to repair/replace it, but Windows Vista will not let me rename or move the file even with administrator permission.<br />
<br />
One recent error when trying to run a nVidia Forceware driver upgrade I get is &quot;The procedure entry point RichEdit10ANSIWndProc could not be located in the dynamic link library RICHED20.dll.&quot;<br />
<br />
I also try to unregister the .dll but it won't let me do that telling me it can't find the entry point. &nbsp;I've Googled this to death and can't find a fix. &nbsp;Please help!!<br />
<br />

</div>
</div>


Recently, I've been receiving all kinds of error messages regarding the riched20.dll file in the c:\windows\system32 directory.  I want to repair/replace it, but Windows Vista will not let me rename or move the file even with administrator permission.

One recent error when trying to run a nVidia Forceware driver upgrade I get is "The procedure entry point RichEdit10ANSIWndProc could not be located in the dynamic link library RICHED20.dll."

I also try to unregister the .dll but it won't let me do that telling me it can't find the entry point.  I've Googled this to death and can't find a fix.  Please help!!



How do I replace/repair riched20.dll in Windows Vista?

Windows Vista is an operating system created by Microsoft as the successor to Windows XP. It was intended for PCs, workstations and laptops, and shares the same code base as its successor, Windows 7. New features included an updated graphical user interface (GUI) and visual style dubbed Aero, a new search component called Windows Search, redesigned networking, audio, print and display subsystems, and new multimedia tools. Vista aimed to increase the level of communication between machines on a home network, using peer-to-peer technology to simplify sharing files and media between computers and devices. Windows Vista included version 3.0 of the .NET Framework, allowing software developers to write applications without traditional Windows APIs.

Windows Vista

This topic area includes legacy versions of Windows prior to Windows 2000: Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions including Windows Mobile.