i have already write an application(exe) in vb6 that work fine(i have used server-in process) Now i have begin to transform in vb.net application. i cannot make this application like a dll to loading with netload because i need to run it outside AutoCad and also because if i make it like a command i cannot use the sendcommand by program. i have create this exe file that work but is very slow. Some help,please p.s. someone have some samples for dotnet objectarx?