Server Message Block (SMB) is an application-layer network protocol that facilitates network communication while providing shared access to client files, printers and serial ports. SMB is prevalent in Microsoft Windows operating systems released prior to the Active Directory protocol, where it was known as Microsoft Windows Network. SMB is also...
A cabinet file (CAB) is a compression file format used by Microsoft installation engines. Many installers use CAB for file compression using a broad range of file headers. Its file extension is .cab.
The CAB file format enables single file compression of multiple files, which facilitates installer package creation. CAB and ZIP archives are similar because each format compresses multiple files into a single file container. A cabinet icon represents ZIP files.
CAB holds multiple files and includes reserved file header space for digital signatures or other data. CAB often attaches to self-extracting programs or installers. Microsoft CAB File (MSCF) markers provide simple identification. MSCF and InstallShield are incompatible file types.
CAB enables the following three different compression formats:
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