PG Log Notations

In the PG Log, when a program tries to gain Read/Write/etc. access to another process, PG states that in the log. But just to the right of the date/time, there is a letter in brackets (I've seen a "P" and a "T", and there might be others). What do these letters mean? Thanks.

Example:

29 Jun 21:57:30 - [P] c:\program files\process explorer\procexp.exe [3608] tried to gain WRITE,SET INFO,SUSPEND access on c:\program files\eset\nod32krn.exe [1736]

 

[P] means it was done to the process
[T] means it was done to a thread in that process

 

Thanks Jason!