LoseThos C+ source file
File type: Source code and script file
A .CP? file is a source code file written in C+, the programming language used by LoseThos.
It belongs to the LoseThos operating system and is intended for use with its C+ development tools.
File type category:
Source code and script file
Date updated: September 24, 2026
.CP? files contain C+ source code for programs or other software components developed in LoseThos. The files are associated with the C+ compiler included with the operating system.
The default C+ compiler file extension is cpz. A CP? file is therefore part of the source-code files used by the LoseThos C+ development environment rather than a general-purpose C or C++ source file.
LoseThos is an operating system and software environment created by Terry A. Davis. The CP? format is specific to that environment and may have limited support outside LoseThos.
Open a .CP? file in LoseThos with its built-in text editor or C+ development tools. The file is source code, so it can also be viewed as text in another editor, but external editors and compilers may not understand LoseThos C+ syntax.
To use the source code as a LoseThos program, open it in a LoseThos environment and compile it with the C+ compiler.
Because a .CP? file contains C+ source code, changing its extension does not convert it to another format.
To use the source with another programming language or compiler, it generally needs to be adapted manually. The practical alternative is to open the file in LoseThos, edit the source as needed, and compile it there.
Software applications that handle other tasks involving cp? files:
Other operating systems or devices
LoseThos
Language
