The current version of "CrypTool 1" is the CrypTool 1.4.30.
This version is written in C/C++ and requires a Win32 environment. It was compiled with the Microsoft Visual Studio 2008 development environment. Right now CT1 is available in 5 languages.
The next version of CrypTool 1.x will be 1.4.31 coming in Q3/2012. This is planned as a pure bugfix release. New functions will only be implemented for CrypTool 2 and JCrypTool.
For further information, see download page.