Contains a service description.
The description of the service. If this member is NULL, the description
remains unchanged. If this value is an empty string (""), the current
description is deleted.
The service description must not exceed the size of a registry value of
type REG_SZ.
This member can specify a localized string using the following
format:
@[path\]dllname,-strID
The string with identifier strID is loaded from dllname; the path is
optional. For more information, see RegLoadMUIString.
Windows Server 2003 and Windows XP: Localized strings
are not supported until Windows Vista.