Question : SQL Agent running Job - SSIS package - specify with windows user account to use

I have created a package and imported it into SQL Integration services.  I have it scheduled to run.  It runs fine under my account which is the account I need it to run under.  When it executes it runs under a different user account.  How can I specify which WINDOWS user account I want it to use on this specific job only?  

Answer : SQL Agent running Job - SSIS package - specify with windows user account to use

Check the Security Rules inside MSDB database.
db_dtsadmin
db_dtstduser
db_dtsoperator

The db_dtsadmin fixed database role secures the SSIS packages that are stored in the MSDB database. The members of the db_dtsadmin fixed database role have the following permissions:

Enumerate all packages.
View all packages.
Execute all packages including the packages in the SQL Server Agent.
Export all packages.
Import packages.
Delete all packages.
Change the package roles.

HELPED?
regards!

DatabaseRoles.bmp (3.7 MB) (File Type Details) 

Database Security