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Set File Compression
This command applies transparent file system compression to a selected file or folder.
Files will not need to be explicitly decompressed before they may be accessed by apps and the system.
Path
Provide the full path to the file or folder to (un)compress, exactly as it would be found on the target system. If you are installing this file, click the button to visually select it.
Compress file
Select this radio button to compress the target file or folder.
Compressing a folder ensures that any future files created in that folder will be compressed. However, any existing uncompressed files will not be automatically compressed as a result of this operation. You may explicitly compress all such items using a for each...next loop interating through the return value of a Find All Files command.
Uncompress file
Select this radio button to uncompress the target file or folder.
Uncompressing a folder ensures that any future files created in that folder will not be compressed. However, any existing compressed files will not be automatically uncompressed as a result of this operation. You may explicitly decompress all such items using a for each...next loop interating through the return value of a Find All Files command.
NTFS
Apply NTFS compression to the selected file system object.
NTFS compression is the only option that is valid for use on folders, as well as files.
Files compressed with NTFS compression are automatically recompressed as they are written to by apps and the system.
NTFS compression is the least efficient option in terms of both speed and size.
XPRESS 4K (Windows 10 or newer only)
Apply XPRESS 4K compression to the selected file system object.
This option cannot be used on folders, only files are valid targets for this option.
Files compressed with this option are instantly decompressed in full as they are written to by apps and the system.
This option is only available with , , or newer operating systems.
This is the fastest non-NTFS based compression option.
XPRESS 8K (Windows 10 or newer only)
Apply XPRESS 8K compression to the selected file system object.
This option cannot be used on folders, only files are valid targets for this option.
Files compressed with this option are instantly decompressed in full as they are written to by apps and the system.
This option is only available with , , or newer operating systems.
This is the second fastest non-NTFS based compression option.
XPRESS 16K (Windows 10 or newer only)
Apply XPRESS 16K compression to the selected file system object.
This option cannot be used on folders, only files are valid targets for this option.
Files compressed with this option are instantly decompressed in full as they are written to by apps and the system.
This option is only available with , , or newer operating systems.
This is the second strongest non-NTFS based compression option.
LZX (Windows 10 or newer only)
Apply LZX compression to the selected file system object.
This option cannot be used on folders, only files are valid targets for this option.
Files compressed with this option are instantly decompressed in full as they are written to by apps and the system.
This option is only available with , , or newer operating systems.
This is the strongest non-NTFS based compression option.