View SQL code for job in SQL Server Management Studio - sql-server-2008

Question

I want to view the SQL code that is executed for a particular job in SQL Server Management Studio.
Specifically, I have a screen that looks like this:
If I double click it I get a screen that looks like this:
That is not really helpful. I want to see the actual code that is running and possibly modify it.
I am a long time developer but new to Windows so please give an answer that uses terminology that I can see on the screen.
[EDIT] If I click the edit button on the first screen I get the same screen as if I double click it. There is a DTSRun command and some jibberish which is not anything I would expect to edit.
[EDIT] I followed these instructions to decode the encrypted command line:
https://blogs.technet.microsoft.com/vipulshah/2007/03/12/how-to-identify-which-dts-package-is-being-called-by-scheduled-job/
Then I could see the command line looks like this:
DTSRun /S "192.168.2.1" /U "sa" /P "changeme" /N "Delete AppErrors"
I then searched the entire computer for a filename that contained AppErrors in the name. I did not find one.
So I am getting closer, but how do I find what that is executing?

Answer 1

There is no SQL code in this job/task, because the task type is "Operating system (CmdExec)", i.e. this is not a SQL query, but starting of Windows executable file. There will be SQL code for step type "Transact-SQL script (T-SQL)":
What you see in you job step, is execution of SSIS package, which is encrypted. For more information about DTSRun command, take a look at this article - SQL Server DTS command line utility.

Answer 2

I almost solved my problem like this:
A.
I followed the instructions here to decode the encrypted command line:
https://blogs.technet.microsoft.com/vipulshah/2007/03/12/how-to-identify-which-dts-package-is-being-called-by-scheduled-job/
Which amounted to:
Copy the DTSRUN line (everything including the DTSRUN)
Open a Windows Command Line window
Paste the DTSRUN line into the CMD window.
To the end of the line, add /!X /!C
/!X = do not execute /!C = copy results onto Windows Clipboard
Run the command
Open Notepad
Click Edit>Paste
that will paste the actual command into Notepad and it will show the name of the package.
B.
I observed that the command line looked like this:
DTSRun /S "192.168.2.1" /U "sa" /P "changeme" /N "Delete AppErrors"
C.
Then I follow the instructions here to find the code:
https://learn.microsoft.com/en-us/previous-versions/sql/sql-server-2008-r2/cc645945(v=sql.105)
which amounted to:
In Object Explorer, expand the Management folder.
Expand the Legacy subfolder.
Expand the Data Transformation Services subfolder to show packages.
D.
I right click on it and choose Open. I get this error:
I should not have to install anything because the person who put this on the machine must have been able to edit it. (this person is completely unavailable so I can't ask him). The reason I need access to it is that we are upgrading the machine.