Exception

IsolatedStorageException
SUDSGeneratorException
SUDSParserException
InvalidActiveXStateException
ApplicationException
- InvalidFilterCriteriaException
- TargetException
- TargetInvocationException
- TargetParameterCountException
SystemException
- AppDomainUnloadedException
- ArgumentException
  - ArgumentNullException
  - ArgumentOutOfRangeException
  - InvalidEnumArgumentException
  - DuplicateWaitObjectException
- ArithmeticException
  - DivideByZeroException
  - NotFiniteNumberException
  - OverflowException
- ArrayTypeMismatchException
- BadImageFormatException
- CannotUnloadAppDomainException
- CodeDomSerializerException
- LicenseException
- WarningException
- ConfigurationException
- InstallException
- ContextMarshalException
- DataException
- ConstraintException
  - DeletedRowInaccessibleException
  - DuplicateNameException
  - InRowChangingEventException
  - InvalidConstraintException
  - InvalidExpressionException
  - MissingPrimaryKeyException
  - NoNullAllowedException
  - ReadOnlyException
  - RowNotInTableException
  - StrongTypingException
  - TypedDataSetGeneratorException
  - VersionNotFoundException
- DBConcurrencyException
- OdbcException
- OracleException
- SqlException
- SqlCeException
- SqlTypeException
  - SqlNullValueException
  - SqlTruncateException
- InvalidPrinterException
- RegistrationException
- ServicedComponentException
- ExecutionEngineException
- FormatException
  - CookieException
  - CustomAttributeFormatException
  - UriFormatException
- IndexOutOfRangeException
- InvalidCastException
- InvalidOperationException
  - ProtocolViolationException
  - WebException
  - ObjectDisposedException
- InvalidProgramException
- InternalBufferOverflowException
- IOException
- ManagementException
- MemberAccessException
- MulticastNotSupportedException
- NotImplementedException
- NotSupportedException
- NullReferenceException
- OutOfMemoryException
- RankException
- AmbiguousMatchException
- ReflectionTypeLoadException
- MissingManifestResourceException
- ExternalException
  - CheckoutException
  - Win32Exception
    - SocketException
  - OleDbException
  - MessageQueueException
  - COMException
  - SEHException
  - HttpException
- InvalidComObjectException
- InvalidOleVariantTypeException
- MarshalDirectiveException
- SafeArrayRankMismatchException
- SafeArrayTypeMismatchException
- RemotingException
- ServerException
- SerializationException
- CryptographicException
- PolicyException
- SecurityException
- VerificationException
- XmlSyntaxException
- TimeoutException
- StackOverflowException
- SynchronizationLockException
- ThreadAbortException
- ThreadInterruptedException
- ThreadStateException
- TypeInitializationException
- TypeLoadException
- TypeUnloadedException
- UnauthorizedAccessException
- SoapException
- XmlSchemaException
- XmlException
- XPathException
- XsltException

.NET exception hierarchy