First Download & Install Dosbox on Windows:
Go To: http://www.dosbox.com > Downloads Tab > Click the Windows version (Under the Dosbox category)
Next: Open the Games folder then the SecretAgent folder within it. Locate and then run Dosbox by double clicking on the Dosbox program icon.
Next: At the the command prompt in Dosbox type "config -writeconf dosbox.conf" and then press the "Enter" key.
Next: Type "exit" to exit Dosbox.
Now: Locate and right click on the Dosbox config file. Click "open with" & select notepad.
Go To: http://abandonia.com
Next: Type "Secret Agent" in the game search box in the upper right corner of the main page and press enter.
First: Right click on the "Secret Agent-1" file you saved to your hard drive and click on "Extract All".
Then: Click the "Next" button when the extractor launches. You will be asked where you would like to extract the Secret Agent game files, select "C:\Games\SecretAgent". When you're done click "Next" again and the Secret Agent files will begin to extract.
The config file is missing what do I do?
The game won't run on Windows Vista. What should I do?
The game runs sluggish. Is there a way to improve this?
How do I make the game launch in fullscreen mode?
How do I change the amount of RAM available?
How do I mount a hard drive or CD-ROM drive in Dosbox?
How do I change my machine type in Dosbox?
How do I capture a screenshot during gameplay?
I can't download from Abandonia. What should I do?
How do I close or exit Dosbox?