The question is quite simple I think, can I use CPF in the office or is it only for personal use at home?
CFP is free for personal, professional or academic use without restriction. Simple as that. Free. Forever.
It is preferred that you have a separately downloaded setup file for each PC your want to install CFP onto, as this gives Comodo a far better idea of the usage of their product. This is not a compulsory condition, but I consider it to be simple courtesy.
Hope this helps,
Thanks panic, things much clear now :Beer (R)