Hi, A year back i have developed a small script in perl for a customer and developed its .exe using pp . we delivered .exe file along with basic cygwin(1.52) install files to run that .exe to customer. Now we got an enhancement in the script .we lost all dev environment for cygwin .Again we installed fresh cygwin with 1.7 version ,coded and generated .exe file.this file is not running in the customer environment who have cygwin 1.52.Just it will be balnk after executing the .exe we cannot ask customer to upgarde the test environment. what is other way to make it run .exe with cygwin dll 1.7 on cygwin 1.52. Any help would be higly appreciated. Rgds, sowm