+.TP
+\fB--compact\fR=\fIFORMAT\fR
+Windows-only: compress the extracted files using System Compression, when
+possible. This only works on either Windows 10 or later, or on an older Windows
+to which Microsoft's wofadk.sys driver has been added. Several different
+compression formats may be used with System Compression, and one must be
+specified as \fIFORMAT\fR. The choices are: xpress4k, xpress8k, xpress16k, and
+lzx.
+.IP ""
+Exclusions are handled in the same way as with the \fB--wimboot\fR option.
+That is: if it exists, the [PrepopulateList] section of the file
+\\Windows\\System32\\WimBootCompress.ini in the WIM image will be read, and
+files matching any of the patterns in this section will not be compressed.
+In addition, wimlib has a hardcoded list of files for which it knows, for
+compatibility with the Windows bootloader, to override the requested compression
+format.