Citadel is distributed in four versions: Trial, Compress, Crypt and Pro. The differences are detailed below.


Trial Compress Crypt Pro Enterprise
Price in US $ Free 29 49 89 179
12 months top priority technical support by email

12 months free upgrades to any new major version

Source code (1)

DFMs packing for smaller and securer DFMs (2)
DFMs encryption
License of use (other than evaluation of the software)
Royalty free applications distribution
Relocation section removal for exes
DFMs compression
New command line tool
Free technical support by email
Free upgrades to any new minor version (1.x)
Designed for minimum footprint
Supports Windows 95, 98, NT, Me, 2000 and XP
Versions for Delphi 5, Delphi 6, Delphi 7, Delphi 2005,  Delphi 2006/2007 and Delphi 2009

1 The Pro and Enterprise versions include all the Object Pascal source code. The wizard uses a dll whose source code is not included. This dll handles the resources edition and relocations removal.
2. Disabled for Delphi 2009 and above.

Requirements and limitations

Citadel can only be used in VCL applications developed in Delphi
The application can't be compiled with runtime packages
The command line tool doesn't support the DFMs packing option
There are no limitations with regard to the Windows OS version
Citadel is not compatible with products which need direct access to the dfms. That is, instead of loading the forms by using the standard VCL mechanism they load the resource containing the dfm. This is very uncommon.

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