These instructions are copied directly from the Installing and Configuring Enteprise Vault FSA (Page79)
Preparing file servers
For placeholder shortcut creation on a Windows platform, the Vault Service
account must have the following access rights:
■ Local administrator rights on the file server
■ Full control on the share that is configured as the target volume
Optionally the Vault Service account also requires browse permissions on the
target folders, and on any folders in the paths to the target folders. If these optional
permissions are not set, the administrator is unable to browse in the Administrator
Console for the target folder, and so must specify the path by typing it in.
Judy Glazier