Question : SSIS Security

I have designed an SSIS package. I am the only one who is able to execute the package not other users. I have saved my SSIS package as a file.
I have tried ProtectionLevel: Encrypt sensitivewithPassword and Encrypt sensitive with user key. Both didn't help.

Answer : SSIS Security

You have to give me some more information. Is the user running the package on the same computer, or using another computer? Have you tried running it on another computer yourself? Have you tried installing the latest servicepack? What connections are you using in the package?
Check this two things:
- Is visual studio properly installed? Maybe DTSdebughost.exe is corrupted, or not available for other users on the computer
- Check if connections to the database are using Integrated Windows security or a database login. Windows security might fail for another user executing the package