Difference between .exe and the .exe returned from Inno Setup - Installed application fails [duplicate]

Answer 1

If anyone wants to know how I solved it, I just moved the .exe to the installer's directory, and when it prompts you to add your .exe in Inno Setup, it should be in the directory that it opens to by default. Not sure why that worked (or if that's a requirement for the program), but it worked for me

Answer 2

The Inno Setup does not modify the installed EXE files in any way.

If the application is failing when installed, it's not Inno Setup's fault per se, it's rather fault in the deployment process.

Possible reasons why the installed application is failing are numerous, including, but not limited to:

• You omitted some dependency
  • DLL library
  • .NET Framework
  • Java Runtime Environment
  • other runtime
  • COM/ActiveX object, etc.
• The application requires some configuration
  • a file
  • a registry key [including COM/ActiveX object registration]
  • an environment variable, etc.
• Some applications require a write access to their folder. As Inno Setup installs the application to "Program Files" folder by default, where write access is restricted, such applications fail.