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Registry Home > Windows > File System > Files and Shortcuts

Preserving Long Filenames for Legacy Applications (Windows 95/98/Me)

Windows normally preserves the long filenames of files accessed by legacy applications. This functionality can be disabled if you are experiencing LFN errors with a legacy application.

Open your registry and find or create the key below.

Create a new Binary value, or modify the existing value, called "PreserveLongNames" and set it according to the value data below.

Exit your registry; you may need to restart or log out of Windows for the change to take effect.

Registry Editor Example
|NameTypeData|
|(Default)REG_SZ(value not set)|
|PreserveLongNamesREG_BINARY00 00 00 00|
-
|HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSyst...|
-
Registry Settings
System Key: [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem]
Value Name: PreserveLongNames
Data Type: REG_BINARY (Binary Value)
Value Data: (00 00 00 00 = disabled, ff ff ff ff = enabled)

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Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last modified: January 12, 1999

 
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