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{{FormatInfo
|formattype=electronic
|subcat=Graphics
|extensions={{ext|pcx}}
|released=1996
}}
'''VGAPaint 386 PCX Self-Extracting Picture''' (referred to here as PCX-SFX) is an unusual raster graphics file created by VGAPaint 386, an image and animation editor for DOS. For more information about VGAPaint 386, refer to [[VGAPaint 386 Animation]].

== Discussion ==
A PCX-SFX file is almost a [[PCX]] file, but the first two bytes are different, and it contains executable code in some otherwise-unused bytes.

The format seems to have a very narrow use case. A PCX-SFX file is not an executable ''file''; it is essentially a fragment of machine code that could be incorporated into a computer program.

The documentation says that this feature "Saves the current picture in a special self-extracting format. To uncompress, load the file into a memory buffer the necessary size +1024, then call it in 32-bit protected mode."

== Identification ==
PCX-SFX files start with bytes {{magic|eb 0e 01 08}}, and (at least for v1.4) have
{{magic|e8 00 00 00 00 58 83 e8 15 60 8d b0}} at offset 16.

== Software ==
* VGAPaint 386 - Refer to [[VGAPaint 386 Animation#Software]]

Note: Using a hex editor to change the first two bytes from <code>eb 0e</code> to <code>0a 05</code> should be sufficient to convert the file to a valid [[PCX]] file.

[[Category:Executable envelopes]]

VGAPaint 386 PCX Self-Extracting Picture - Revision history

Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics |extensions={{ext|pcx}} |released=1996 }} '''VGAPaint 386 PCX Self-Extracting Picture''' (referred to here as PCX-SFX) is ..."