8401. IProductTagService
8402. IProductVariant
8403. IProductsRepository
8404. IProfile
8405. IProgram
8406. IProgress
8407. IProgressHandler
8408. IProgressIndicator
8409. IProgressMonitor
8410. IProgressReporter
8411. IProgressStatus
8412. IProject
8413. IProjectContent
8414. IProjectEntry
8415. IProjectFile
8416. IProjectItem
8417. IProjectManager
8418. IProjectRepository
8419. IProjectService
8420. IProjectSpecifier
8421. IProjection
8422. IProperties
8423. IProperty
8424. IPropertyBag
8425. IPropertyDefinition
8426. IPropertyInfo
8427. IPropertyInstance
8428. IPropertyMap
8429. IPropertySet
8430. IPropertySymbol
8431. IPropertyValidator
8432. IPropertyValue
8433. IProtectionService
8434. IProtoSerializer
8435. IProtocol
8436. IProtocolMessage
8437. IProvider
8438. IProviderConfiguration
8439. IProviderManager
8440. IProviderRuntime
8441. IProxyGenerationHook
8442. IPsiSourceFile
8443. IPublicPlayerView
8444. IPublication
8445. IPublishable
8446. IPublishedContent
8447. IPublisher
8448. IPythonInterpreterFactory
8449. IQ
8450. IQEvent
8451. IQGraphicsItem
8452. IQuantity
8453. IQuery
8454. IQueryAdapter
8455. IQueryBuilder
8456. IQueryContext
8457. IQueryPlanNode
8458. IQuerySource
8459. IQueryable
8460. IQueryableCollection
8461. IQueue
8462. IQueueManager
8463. IQueuedEmailService
8464. IQuickInfoSession
8465. IQuickTaskProvider
8466. IR
8467. IRMethod
8468. IROMatrix
8469. IROVector
8470. IRQContext
8471. IRailsEngineContext
8472. IRandom
8473. IRandomAccessStream
8474. IRandomGenerator
8475. IRange
8476. IRaster
8477. IRdfHandler
8478. IReactiveCommand
8479. IReadBuffer
8480. IReadContext
8481. IReadOnlyCollection
8482. IReadOnlyDictionary
8483. IReadOnlyList
8484. IReader
8485. IRealmClient
8486. IReceiver
8487. IRecord
8488. IRecordVisitor
8489. IRecurrencePattern
8490. IRecvPacket
8491. IRedisClient
8492. IRedisClientsManager
8493. IReference
8494. IReflect
8495. IReflectClass
8496. IReflectionVisitor
8497. IReflector
8498. IRegion
8499. IRegionClientCapsService
8500. IRegionManager