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Installation and Configuration
Installation : OpenEdge Installation Prerequisites : Windows-specific installation considerations : Read-only .dll and .ocx files
Read-only .dll and .ocx files
Before you install any OpenEdge products in Windows, check the directory C:\Winnt\system32 or C:\Windows\system32 to see whether any of the .dll or .ocx files have the read-only bit set. If any .dll or .ocx files in this directory are read-only, you must reset them before installing OpenEdge. If you try to install OpenEdge with one or more related .dll or .ocx files set to read-only, OpenEdge generates a dialog box informing you that you must reset the .dll bit or .ocx bit and reinstall OpenEdge.