A customer of a shared resource environment can generate script to be executed by one or more virtual machines, or other such instances or resources, and share that script with other users. The script can relate to administrative or other such tasks, and can be encapsulated into a document, or other such expression, and stored to a network-accessible location. The owner of the document can designate permissions as to which users have rights to access and/or execute the script against their own virtual machines. An owner can grant permission to all users, no other users, or specific users. The script can include parameter values that can be set by the other users or links to specific executables or other objects, among other such options.