The ListModels.dss and CheckModelAccess.dss scripts use the executable RetrieveModels.exe to determine whether the user has access to a model based on file system authorization. For many reasons domain controller lookups may consume quite some time. As a result RetrieveModels could take several seconds to complete. Adding the parameter "/d" to the RetrieveModels call in these scripts will suppress all domain lookups and base all access checks on local security.