I have Solid Edge 2D drafting v19 (ST4). I have the license key too. I installed the software in my windows 7 operating system. After installation completed, when i open the program it says "invalid license key"... plz help.
I had the same problem, the answer is that you don't need an extra licence key. The right licence key sits in the installation file. Solution: remove the program and install it again. Start the program without replacement of any file.