The original StegSpy is obsolete, unsafe to download from random sites, and less capable than free, modern alternatives. Searching for a "stegspy download link" is a security risk 99% of the time.
Using StegSpy on files you do not own or without permission may violate computer fraud laws in many jurisdictions. Furthermore, downloading unsigned executable files from untrusted sources violates corporate security policies.
When testing tools like StegSpy, consider using a virtual machine to isolate the testing environment from your main system.