Installing MPE Cross Compilers ============================== Run the supplied executable SETUP.EXE and follow the on screen instructions. The CD key is a 12 digit number which you will find in the email response or invoice for the Stamp, Standard, or Developer versions. The CD key must be entered as a 12 digit number with no punctuation or separators between the digits. After installation, the manuals are availble from the DOC folder in PDF format. Windows 7 and DEP ================= If you have Windows 7 or another version of Windows with DEP enabled, the compiler will not install. You will probably see a message complaining about CDKEY.DLL. To fix this problem you must turn off DEP (Data Execution Prevention). 1) Goto Windows help, search for "Turn off DEP" and follow the instructions. 2) Reboot - according to several users. 3) Install again. Once the compiler is installed, you will need to leave DEP turned off for VFX Forth and any applications built with it. You can also just leave DEP completely turned off. Because VFX Forth is an interactive incremental compiler, the main memory section is marked as having read, write and execute permissions. DEP causes execution from such a section to fault. The installation fault occurs because a component of the installer is written in Forth.