Thank you for your reply.
My friend is using Windows 10 & we are trying to download both Adobe Air & DoCrafts Digital designer straight from the programs websites. Adobe air has to be installed to enable the digital designer program to download and this is where we have the problem because the adobe air file is damaged according to the message but we don't know who or where we can contact the application author as requested on the message.
I also cannot download Adobe air on either my Windows 10 or MacBook air but thankfully I have a fully working digital designer on both, I am concerned that I will be unable to retrieve it if my computer crashes.
I would like to attach a screen print to show the message but I do not know how to do this.
Thank you once again.