The only thing I can think that you're asking for is what the acronym PPI stands for. it's Pay-Per-Install
However this could've easily been discerned by yourself by googling PPI. Here's a Symantec report on the PPI malware phenomenon
Question
I want to konw the fullname of PPI .
The meaning of PPI is a single installation fee,
but I don't know its real fullname.
Solution
The only thing I can think that you're asking for is what the acronym PPI stands for. it's Pay-Per-Install
However this could've easily been discerned by yourself by googling PPI. Here's a Symantec report on the PPI malware phenomenon