After moving all my packages to a new server, win2K3, SQL2k5, non of the SSIS packages run. They all ran fine on the other server.
The error is
"2006-03-07 13:09:38 - ! [LOG] Step 1 of job 'ExportXML' (0x4E0C7495EFE4034FA6EF94B7C7F77262) cannot be run because the SSIS subsystem failed to load. The job has been suspended"
These packages ran perfectly on the old system.
Running the package manually, using DTExec or from the Saved Packages tree in SQL is fine.
Package is saved in SQL.
Since your package works on the new server using DTExec (and the error indicates an agent subsystem failed to load) you might want to post this question to the agent forum since it sounds like an agent problem not an SSIS problem.