Package Files

Table 14.1 lists and describes the types of package-specific files based on their file extensions.

Table 14.1. Package Files
File Extension File Type Description
.dpk Package source file This file is created when you invoke the Package Editor. You can think of this as you might think of the .dpr file for a Delphi project.
.dcp Runtime/Design package symbol file This is the compiled version of the package that contains the symbol information for the package and its units. Additionally, there is header information required by the Delphi IDE.
.dcu Compiled unit A compiled version of a unit contained in a package. One .dcu file will be created for each unit contained in the package.
.bpl Runtime/Design This is the runtime or design package ...

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