public abstract static class WinNT.SECURITY_IMPERSONATION_LEVEL
The SECURITY_IMPERSONATION_LEVEL enumeration type contains values that
specify security impersonation levels. Security impersonation levels
govern the degree to which a server process can act on behalf of a client
The server process cannot obtain identification information about the
client, and it cannot impersonate the client. It is defined with no
value given, and thus, by ANSI C rules, defaults to a value of zero.
The server process can obtain information about the client, such as
security identifiers and privileges, but it cannot impersonate the
client. This is useful for servers that export their own objects, for
example, database products that export tables and views. Using the
retrieved client-security information, the server can make
access-validation decisions without being able to use other services
that are using the client's security context.