MSI - how to export "storage transfomrs" from MSI
MSI - How can I export "storage transfomrs" built in MSI?
"storage transforms" -> http://msdn.microsoft.com/en-us/library/windows/desktop/aa372085(v=vs.85).aspx
Community Chosen Answer
msidb.exe also allows you to extract/add/remove storages. And then are any number of OLE Structured Storage editors available on the web.
You can find this also with G O O G L E :
Very interesting background info..