I have dev a set of arxs programs,Now I want to develop a startUp.exe which can startUp AutoCAD and Let it search for acad.rx file in the folder where the startUp.exe located.
the Arxs that acad.rx file contains is also in the same folder.
More details or code will be prefer.
Do you mean you want to ensure that all your arx modules are loaded at AutoCAD startup ?
In that case, you do not need a startup exe to do that.
If you are using AutoCAD 2012 and later versions, the Autoloader bundle format can be used
http://adndevblog.typepad.com/autocad/2013/01/autodesk-autoloader-white-paper.html
For earlier versions, here are the registry changes to do that.
http://through-the-interface.typepad.com/through_the_interface/2006/09/automatic_loadi.html