Shadow folders set up in VSS should work in SOS.
First, make sure you are using a UNC pathname rather than a mapped drive pathname when referencing the SourceSafe database. This is set within the SourceOffSite server manager in the database tab.
Also, make sure the SOS Server service is running as a domain account. If the service is currently running as a System Account, it may not have access to the drive containing the shadow folder.
To change the SOS Service to run as a domain account, choose Startup
from the Services Control Panel. Examine the "Log On As" option, and
make sure it is set to a valid network user name. For example:
domainname\username.
Shadow Folders
Moderator: SourceGear
Shadow Folders
Linda Bauer
SourceGear
Technical Support Manager
SourceGear
Technical Support Manager