At my prior place of employment we used a DLL service program to link to a service program at inz time. The DLL would then pass back the system pointer stating success, not found, error during activation etc. If it was successful, we then could envoke procedures within the the RPG program using an EVAL statement. The code that I saw was written in C on the 400. Can anyone help me in writing this here where I am at????? Or lead me to a place with examples???? Any help would be greatly appreciated Trevor Price Programmer/Analyst Werner Enterprises