I'm with you here, Doug:
from Irfanview's help:
Click on the Options Menu, then Capture. A dialog allows you to capture portions of your screen.
Capture - Area:
Use the option buttons to capture from your Whole screen, a Foreground window, or a Foreground window - client area (window without caption, menu and status bar).
Capture - Method:
You can capture with a self-defined hotkey or use the automatic capturing. For automatic capturing set a timer value. The value will be the number of seconds apart the viewer will take "snapshots" of the screen or window. One hotkey is valid for the duration of current IrfanView session.
Saving - Method:
You can display each captured image in the main window or you can save to disk.
If you use save to disk, you can set:
? Destination directory for images. Type in a directory path, or use the Browse button to find the directory you
want to use.
? Save as box lets you choose which image format will be used to store the screens on your disk drive. Click the arrow and
select one of the formats to change from the default JPG. The Options button brings up another dialog box with
special options for certain file types.
Capture - Options:
If you want to see the mouse cursor in your screenshot image, check Include mouse cursor option.
Click Start to start capturing or Cancel to exit. After start, IrfanView window is minimized. Now, use the defined hotkey (if hotkey capturing used) to capture any foreground/activated window or desktop. You can make several shots using the hotkey.
Note: Click Options, then Capture again to stop any eventually started capture timer.