How to Capture a Screenshot

While in the sim, press the "Print Screen" (or PrntScrn on some systems) button. The captured screenshot is now on the Windows Clipboard.

Exit the game, fire up Paint (Start->All Programs->Accessories>Paint or Start->Run->type 'mspaint'), and click Edit/Paste (or just use the keyboard shortcut CTRL-V).

Click File/Save As and choose JPEG in the File Type dropdown list. Choose a folder to save your screenshot in, type a filename, then click Save.