The value specified in registry (%1) has no name. The entry is ignored. It must have a valid username as name, be of type ...

The value specified in registry (%1) has no name. The entry is ignored.
It must have a valid username as name, be of type REG_DWORD, and value either '0' or '1'.
Value '0' denies the username from running any VSS writer.
Value '1' is used to allow it.
%2