How to specify a password on the command line of an SSIS package run

Question

I am having an issue where I need to be able to specify the password when I run my packages.

This article http://support.microsoft.com/kb/918760 says:

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Method 3: Set the SSIS Package ProtectionLevel property to EncryptSensitiveWithPassword
Change the SSIS Package ProtectionLevel property to EncryptSensitiveWithPassword. This setting uses a password for encryption. You can then modify the SQL Server Agent job step command line to include this password.

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That all sounds well and good. But where and how to you specify the password?

Here is an example of my current command line:

/FILE "C:\Program Files\Microsoft SQL Server\100\DTS\Packages
       \MainSSISPackage.dtsx"  /CONFIGFILE "C:\Program Files
       \Microsoft SQL Server\100\DTS\Packages\DataConfig.dtsConfig"
        /CHECKPOINTING OFF /REPORTING E

Answer 1

What about this?

/De[crypt] password

http://msdn.microsoft.com/en-us/library/ms162810.aspx