| Class | Description |
| NAdjustmentRule | Provides information about a time zone adjustment, such as the transition to and from daylight saving time. |
| NAggregatePromise | Contains static helpers for working aggregating multiple promises. |
| NApplication | Represents the entry point of integration, between a specific OS or platform and NOV. Prior to using NOV, you need to manually install the Host for this specific OS or platform, by calling the Install() method of a specific application installer. |
| NAsyncTask<TResult> | Represents an async task |
| NAsyncTaskFlow | Represents a flow of asynchronous tasks |
| NCacheSettings | Represents the cache settings used by different NOV caches. |
| NCenturyDateTimeUnit | Represents the century day date time unit (100 years). |
| NCharHelpers | Static class for commonly used char functions. |
| NCompare | Contains helpers for making comparisions. |
| NConvert | Converts data from one type to another. |
| NDataUri | Represents a data URI, which is usually used to embed a resource in a text based document (HTML, XML, SVG, etc.). |
| NDateTimeHelpers | Contains helper methods for working with date time values. |
| NDateTimeUnit | Represents a date/time unit |
| NDateTimeUnitSerializer | Serializes date / time units |
| NDayDateTimeUnit | Represents the day date time unit. |
| NDebug | A helper class for debugging Nevron Open Vision. |
| NDecadeDateTimeUnit | Represents the decade day date time unit (10 years). |
| NDesign | Contains some constants used by editors and designers. |
| NDisposableObject | Serves as base class for objects, that use unmanaged resources. |
| NDKI | NDKI |
| NDSTKI | |
| NEKI | NEKI |
| NEmbeddedResource | Represents an embedded resource. |
| NEmbeddedResourceContainer | Represents a container for embedded resources. Serves as base class for all automatically generated embedded resources. |
| NEnum | Provides enum helper methods. |
| NErrorLog | A static class that is used for error logging by Nevron Office applications like MyDraw. |
| NFileUri | Represents a file URI. |
| NHalfDayDateTimeUnit | Represents the half day date time unit. |
| NHalfYearDateTimeUnit | Represents the half year date time unit. |
| NHourDateTimeUnit | Represents the hour date time unit. |
| NLicense | Represents a license to use Nevron components. |
| NLicenseManager | Manages Nevron License keys. |
| NLKI | NLKI |
| NLoc | Provides string translations using the localization dictionary. |
| NLog | Represents a generic log implementation |
| NMachineInfoService | Represents a service that provides the machine information |
| NMath | Static class for commonly used mathematical routines. |
| NMathF | Static class for commonly used mathematical routines. |
| NMillisecondDateTimeUnit | Represents the millisecond date time unit. |
| NMinuteDateTimeUnit | Represents the minute date time unit. |
| NModule | Serves as base class for all modules. A NOV module is usually associated with an assembly based on NOV, that wants to integrate with core NOV features and services. |
| NMonthDateTimeUnit | Represents the month date time unit. |
| NNonObuscatedAttribute | |
| NPLKG | NPLKG |
| NPLKI | Base for all paid licenses |
| NPresentationLoadAssemblyType | Dummy type used to explicitly load the Nevron.Nov.Presentation assembly |
| NProgress | Used in time consuming operations that can possibly notify about the progress they are making. |
| NPromise<TResult> | Represents a promise for an async operation. |
| NQuarterDateTimeUnit | Represents the quarter date time unit (3 months). |
| NReflectionService | Contains properties and methods for performing reflection related tasks. |
| NRKI | |
| NSecondDateTimeUnit | Represents the second date time unit. |
| NSKI | Represents a server key |
| NStopwatch | This class is an analogue to System.Diagnostics.Stopwatch. Is is needed because there isn't a Stopwatch class in Silverlight. |
| NStringHelpers | Static class for commonly used string functions. |
| NStringParser | Base class for all string parsers. |
| NSystem | Static class for commonly used functions, related to the CLR. |
| NTickDateTimeUnit | Represents the tick date time unit. |
| NTimer | Represents a timer, which raises tick events at user specified amounts of time |
| NTimeSpanHelpers | Contains helper methods for working with time span values. |
| NTimeZone | Represents a time zone. |
| NTrace | A helper class for tracing Nevron Open Vision. |
| NTransactionResult | Transaction result information |
| NTSKI | NTSKI |
| NUndefined | Represents a singleton undefined (void) object. |
| NUri | Provides an object representation of a uniform resource identifier (URI) and easy access to the parts of the URI. To create URIs use the TryCreate static method. |
| NUriBase | Base class for all URIs and data URIs. |
| NWeekDateTimeUnit | Represents the week date time unit. |
| NWordProcessor | The NWordProcessor class provides properties and methods for working with the words in a given string. |
| NYearDateTimeUnit | Represents the year date time unit. |