The PM575 sold for decent money yesterday.
Was the buyer a member of this forum ? If so, please feel free to ask any questions and I will see if I can help
The FLIR information archive site contains the manuals, software etc........
https://flir.custhelp.com/app/account/fl_downloadsTo download software you need to register but it is no great problem. FLIR will provide an account. Downloading manuals does not require registration.
If the camera came with any software user manuals, you should find the activation licence code on a label inside the front cover or fly sheet.
To view the captured images on a PC you use Image Explorer 99 which is a free program. FLIR Researcher is used for detailed image analysis. IIRC FLIR Tools does not support the image format, but I could be wrong.
Fraser