---
type: lookup
id: 44-43-4d-01-50-41-33-30-50-41-33-30
asset: file-format-signatures
title: "44 43 4D 01 50 41 33 30 50 41 33 30 — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "DCM␁PA30 PA30 | 0 | | Windows Update <https://en.wikipedia.org/wiki/Binary_delta_compression> Binary Delta Compression file [ 60 ] |"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "44 43 4D 01 50 41 33 30 50 41 33 30"
offset: "0"
format: "Windows Update Binary Delta Compression file"
unverified_fields: format, hex_signature
---
**Hex signature:** 44 43 4D 01 50 41 33 30 50 41 33 30

**Offset:** 0

**Format:** Windows Update Binary Delta Compression file

> DCM␁PA30 PA30 | 0 | | Windows Update <https://en.wikipedia.org/wiki/Binary_delta_compression> Binary Delta Compression file [ 60 ] |

Source: <https://en.wikipedia.org/wiki/List_of_file_signatures>