This number is used to specify the process when attaching a debugger to it. In this article Each process running in Microsoft Windows is assigned a unique decimal number called the process ID, or PID.You can find the PID for a product key by using the online PID checker. The PID is the product id assigned to each oem manufacturer by edition (ie Home Premium, Ultimate, etc.). Windows 7 Product Key Checker is an easy to use application designed to offer you a full description of the every fields of the product key, Product ID, Extended PID, Activation ID, Edition ID, License Type, License Channel, and Crypto ID. Here is a very useful utility Windows 7 Product Key Checker which lets you to check and verify your Windows 7 Product key. Error Reporting Win 10 Product Id Windows Live Mail Error Id: 0X800Ccc0E. Windows Registry Checker Error Analysis Chemistry Lab Windows 7 Error. Windows Error 1719 Xploitz Ruiz Microsoft Windows Error Code 2000-0142. In the Processes folder, find the select the process and view its PID in the corresponding column. In the Select Process Page Columns, select the PID (Process Identifier) check box. In the Windows Task Manager window, go to the Processes tab.