OK, let's make some things clear first:
A) Dosbox is used for running under a Windows XP environment games that were originally designed for DOS and working only in that environment. As such, this applies to the original version of "Aces of the Deep" and its expansion disks.
Dos box however is NOT indicated to run programs that are created for a Windows 95-98 environment.
B) The game you bought is apparently "Command: Aces of the Deep" i.e. the revised later version created for Windows 95-98. As such, it will NOT run in Dosbox, and it *might* run in Windows XP.
Can you clarify first exactly which version have you bought? A screenshot of the contents of your CD might help being able to tell you what you must do.