Hi Tom, thanks for the update, I have tried both ways - via the RMMC import method - the WeDo package will work fine but it won't do the activity pack at all. I have tried using package builder and the package appears to be created fine but errors when it is assigned to a PC. If you have step by step instructions that you followed I could try again. Did you put an .ini file in the software folder to run it silently - as suggested in other posts on here. I have followed the instructions in the CC4 packaging guide about running a test for silent install using the msiexec?i .....software path / qn+ and it installs fine so thought it would work creating the package. any help gratefully received, thanks Anne