I love ProShow Producer and also hope to use it as long as possible. I did download the install files again from the now closed Photodex site. These are supposedly available for a limited time there.
http://www.photodex.comThe registration key info should have been emailed to you when you first purchased the products. I read on the Photodex site prior to closure that anyone wanting to reinstall should be able to without any problems as long as you have the install file and your key. I have a second computer I tried this on yesterday and installation and start up went without a hitch. I also debated on the merits for me of going with Photopia, but unfortunately cost is prohibitive for me being mainly a casual user and a retiree. I mainly make shows for myself, friends, and family. If the program wasn't subscription based, I probably would have gone for it however.
Someone also mentioned they had problems when trying to purchase something before shut down. I purchased the 9 upgrade and several style packs, one of those on the last day before 5 PM and had no problems with them. The email was almost instantaneous and I received the second email with registration info within 30 minutes or so. There's a contact email on the Photodex.com site at
support15423@photodex.com for assistance for a limited time.
While a newbie to this forum, I have followed it for awhile and hope it stays available. I have downloaded some great templates that have been offered and thank those who offered them.