View source for C2t

{{FormatInfo
|formattype=electronic
|subcat=Executable envelopes
|extensions={{ext|com}}
|released=2000
}}
'''c2t''' is a collection of two DOS utilities, '''c2t1''' and '''c2t2''', developed by Jørgen Ibsen (a.k.a. Jibz). Each converts a [[DOS executable (.com)|COM file]] to one whose bytes all belong to a certain set of [[ASCII]] characters, and which still has the same functionality. c2t1 has a smaller decoder, while c2t2 usually produces smaller files.

See [[Executable envelopes#Transfer-encoded executables]] for some similar utilities.

== Identification ==
c2t1-encoded files always start with the same 58 bytes, which can be found in the source code. The first 16 are ASCII "{{magic|X502503P_5:S)E8,"}}.

c2t2-encoded files always start with the same 112 bytes, which can be found in the source code. The first 16 are ASCII "{{magic|X502503P_5:P)En-"}}.

== Software ==
* [{{SACFTPURL|utilprog|c2t.zip}} c2t.zip] - DOS binaries + assembly language source code
* [https://github.com/jibsen/com2text GitHub project] - Includes a utility to recover the original file.

[[Category:Transfer Encodings]]