Thank you for trying PreC.
In the .rar archive you will find the following files:
PreC demo executable: dprec.exe
PreC documentation : PreC.doc
A sample program: tsort1.C
A small application crlf.exe which converts New Lines to Carriage Returns

The demo version supports only the GCC compiler and requires Cygwin to be installed.
The full version supports also the Microsoft C/C|| compiles and allows addition of new compilers by the end user.

To get the full version please find registration information in PreC.doc

Support will be provided to licensed users.
Licensed users will get at support email and will be able ro purchase also the source code.