Here is a batch file to execute ssis packages:

the /DECRPYT is where you would put the package password (if there is one)

The following illustrates using the 64 bit bit version and the 32 bit version

rem this will be a batch file to call ssis packages

rem "C:\Program Files\Microsoft SQL Server\100\DTS\Binn\DTEXEC.exe" /f "C:\Subversion\Test\Test\package.dtsx" /DECRYPT password"

"C:\Program Files (x86)\Microsoft SQL Server\100\DTS\Binn\DTEXEC.exe " /f "C:\Subversion\Test\Test\package.dtsx" /DECRYPT password"