Windows 10 DLL File Information - vssapi.dll

The following DLL report was generated by automatic DLL script that scanned and loaded all DLL files in the system32 directory of Windows 10, extracted the information from them, and then saved it into HTML reports. If you want to view a report of another DLL, go to the main page of this Web site.

General Information

File Description:	Microsoft® Volume Shadow Copy Requestor/Writer Services API DLL
File Version:	10.0.10130.0 (fbl_impressive.150522-2224)
Company:	Microsoft Corporation
Product Name:	Microsoft® Windows® Operating System
DLL popularity	Low - 9 other DLL files in system32 directory are statically linked to this file.
File Size:	1,111 KB
Total Number of Exported Functions:	84
Total Number of Exported Functions With Names:	84

Section Headers

Name	Virtual Address	Raw Data Size	% of File	Characteristics	Section Contains...
.text	0x00001000	921,600 Bytes	81.0%	Read, Execute	Code
.data	0x000e2000	1,536 Bytes	0.1%	Write, Read	Initialized Data
.idata	0x000e4000	8,704 Bytes	0.8%	Read	Initialized Data
.didat	0x000e7000	512 Bytes	0.0%	Write, Read	Initialized Data
.rsrc	0x000e8000	137,216 Bytes	12.1%	Read	Initialized Data
.reloc	0x0010a000	67,584 Bytes	5.9%	Read, Discardable	Initialized Data

Static Linking

vssapi.dll is statically linked to the following files:

msvcrt.dll
ntdll.dll
api-ms-win-core-file-l1-2-1.dll
api-ms-win-core-memory-l1-1-2.dll
api-ms-win-core-libraryloader-l1-2-0.dll
api-ms-win-core-registry-l1-1-0.dll
api-ms-win-core-synch-l1-2-0.dll
api-ms-win-core-sysinfo-l1-2-1.dll
api-ms-win-core-heap-l1-2-0.dll
api-ms-win-eventing-provider-l1-1-0.dll
api-ms-win-core-string-l1-1-0.dll
api-ms-win-core-errorhandling-l1-1-1.dll
api-ms-win-core-string-l2-1-0.dll
api-ms-win-core-io-l1-1-1.dll
api-ms-win-core-handle-l1-1-0.dll
api-ms-win-core-heap-l2-1-0.dll
api-ms-win-core-processthreads-l1-1-2.dll
api-ms-win-core-profile-l1-1-0.dll
api-ms-win-core-string-obsolete-l1-1-0.dll
VssTrace.DLL
api-ms-win-core-processenvironment-l1-2-0.dll
api-ms-win-security-base-l1-2-0.dll
api-ms-win-core-debug-l1-1-1.dll
api-ms-win-core-localization-l1-2-1.dll
RPCRT4.dll
DSROLE.dll
api-ms-win-core-file-l2-1-1.dll
WS2_32.dll
api-ms-win-core-delayload-l1-1-1.dll
api-ms-win-core-heap-obsolete-l1-1-0.dll
api-ms-win-eventlog-legacy-l1-1-0.dll
api-ms-win-core-kernel32-legacy-l1-1-1.dll
api-ms-win-core-util-l1-1-0.dll
bcd.dll

This means that when vssapi.dll is loaded, the above files are automatically loaded too. If one of these files is corrupted or missing, vssapi.dll won't be loaded.

List of files that are statically linked to vssapi.dll

esevss.dll
fvewiz.dll
iasdatastore.dll
ifsutilx.dll
reseteng.dll
spp.dll
srcore.dll
srmclient.dll
srrstr.dll

This means that when one of the above files is loaded, vssapi.dll will be loaded too. (The opposite of the previous 'Static Linking' section)

General Resources Information

Resource Type	Number of Items	Total Size	% of File
Icons	0	0 Bytes	0.0%
Animated Icons	0	0 Bytes	0.0%
Cursors	0	0 Bytes	0.0%
Animated Cursors	0	0 Bytes	0.0%
Bitmaps	0	0 Bytes	0.0%
AVI Files	0	0 Bytes	0.0%
Dialog-Boxes	0	0 Bytes	0.0%
HTML Related Files	0	0 Bytes	0.0%
Menus	0	0 Bytes	0.0%
Strings	0	0 Bytes	0.0%
Type Libraries	0	0 Bytes	0.0%
Manifest	0	0 Bytes	0.0%
All Others	4	136,792 Bytes	12.0%
Total	4	136,792 Bytes	12.0%

Icons in this file

No icons found in this file

Cursors in this file

No cursors found in this file

Dialog-boxes list (up to 1000 dialogs)

No dialog resources in this file.

String resources in this dll (up to 1000 strings)

No string resources in this file.

COM Classes/Interfaces

There is no type library in this file with COM classes/interfaces information

Exported Functions List

The following functions are exported by this dll:

CreateVssBackupComponentsInternal

CreateVssExamineWriterMetadataInternal

CreateVssExpressWriterInternal

CreateWriter

CreateWriterEx

DllCanUnloadNow

DllGetClassObject

GetProviderMgmtInterface

GetProviderMgmtInterfaceInternal

IsVolumeSnapshotted

IsVolumeSnapshottedInternal

ShouldBlockRevert

ShouldBlockRevertInternal

VssFreeSnapshotProperties

VssFreeSnapshotPropertiesInternal

long __stdcall CreateVssBackupComponents(class IVssBackupComponents * *)

long __stdcall CreateVssExamineWriterMetadata(unsigned short *,class IVssExamineWriterMetadata * *)

long __stdcall CreateVssSnapshotSetDescription(struct _GUID,long,class IVssSnapshotSetDescription * *)

long __stdcall LoadVssSnapshotSetDescription(unsigned short const *,class IVssSnapshotSetDescription * *,struct _GUID)

protected: bool __stdcall CVssJetWriter::AreComponentsSelected(void)const

protected: bool __stdcall CVssJetWriter::IsBootableSystemStateBackedUp(void)const

protected: bool __stdcall CVssJetWriter::IsPartialFileSupportEnabled(void)const

protected: bool __stdcall CVssJetWriter::IsPathAffected(unsigned short const *)const

protected: bool __stdcall CVssWriter::AreComponentsSelected(void)const

protected: bool __stdcall CVssWriter::IsBootableSystemStateBackedUp(void)const

protected: bool __stdcall CVssWriter::IsPartialFileSupportEnabled(void)const

protected: bool __stdcall CVssWriter::IsPathAffected(unsigned short const *)const

protected: enum _VSS_APPLICATION_LEVEL __stdcall CVssJetWriter::GetCurrentLevel(void)const

protected: enum _VSS_APPLICATION_LEVEL __stdcall CVssWriter::GetCurrentLevel(void)const

protected: enum _VSS_BACKUP_TYPE __stdcall CVssJetWriter::GetBackupType(void)const

protected: enum _VSS_BACKUP_TYPE __stdcall CVssWriter::GetBackupType(void)const

protected: enum _VSS_RESTORE_TYPE __stdcall CVssJetWriter::GetRestoreType(void)const

protected: enum _VSS_RESTORE_TYPE __stdcall CVssWriter::GetRestoreType(void)const

protected: long __stdcall CVssJetWriter::GetContext(void)const

protected: long __stdcall CVssJetWriter::GetSnapshotDeviceName(unsigned short const *,unsigned short const * *)const

protected: long __stdcall CVssJetWriter::SetWriterFailure(long)

protected: long __stdcall CVssWriter::GetContext(void)const

protected: long __stdcall CVssWriter::GetSnapshotDeviceName(unsigned short const *,unsigned short const * *)const

protected: long __stdcall CVssWriter::SetWriterFailure(long)

protected: struct _GUID __stdcall CVssJetWriter::GetCurrentSnapshotSetId(void)const

protected: struct _GUID __stdcall CVssWriter::GetCurrentSnapshotSetId(void)const

protected: unsigned int __stdcall CVssJetWriter::GetCurrentVolumeCount(void)const

protected: unsigned int __stdcall CVssWriter::GetCurrentVolumeCount(void)const

protected: unsigned short const * * __stdcall CVssJetWriter::GetCurrentVolumeArray(void)const

protected: unsigned short const * * __stdcall CVssWriter::GetCurrentVolumeArray(void)const

public: __thiscall CVssJetWriter::CVssJetWriter(void)

public: __thiscall CVssWriter::CVssWriter(void)

public: long __stdcall CVssJetWriter::Initialize(struct _GUID,unsigned short const *,bool,bool,unsigned short const *,unsigned short const *,unsigned long)

public: long __stdcall CVssWriter::Initialize(struct _GUID,unsigned short const *,enum VSS_USAGE_TYPE,enum VSS_SOURCE_TYPE,enum _VSS_APPLICATION_LEVEL,unsigned long,enum VSS_ALTERNATE_WRITER_STATE,bool,unsigned short const *)

public: long __stdcall CVssWriter::InstallAlternateWriter(struct _GUID,struct _GUID)

public: long __stdcall CVssWriter::Subscribe(unsigned long)

public: long __stdcall CVssWriter::Unsubscribe(void)

public: virtual __thiscall CVssJetWriter::~CVssJetWriter(void)

public: virtual __thiscall CVssWriter::~CVssWriter(void)

public: virtual bool __stdcall CVssJetWriter::OnBackupCompleteBegin(class IVssWriterComponents *)

public: virtual bool __stdcall CVssJetWriter::OnBackupCompleteEnd(class IVssWriterComponents *,bool)

public: virtual bool __stdcall CVssJetWriter::OnFreezeBegin(void)

public: virtual bool __stdcall CVssJetWriter::OnFreezeEnd(bool)

public: virtual bool __stdcall CVssJetWriter::OnIdentify(class IVssCreateWriterMetadata *)

public: virtual bool __stdcall CVssJetWriter::OnPostRestoreBegin(class IVssWriterComponents *)

public: virtual bool __stdcall CVssJetWriter::OnPostRestoreEnd(class IVssWriterComponents *,bool)

public: virtual bool __stdcall CVssJetWriter::OnPostSnapshot(class IVssWriterComponents *)

public: virtual bool __stdcall CVssJetWriter::OnPreRestoreBegin(class IVssWriterComponents *)

public: virtual bool __stdcall CVssJetWriter::OnPreRestoreEnd(class IVssWriterComponents *,bool)

public: virtual bool __stdcall CVssJetWriter::OnPrepareBackupBegin(class IVssWriterComponents *)

public: virtual bool __stdcall CVssJetWriter::OnPrepareBackupEnd(class IVssWriterComponents *,bool)

public: virtual bool __stdcall CVssJetWriter::OnPrepareSnapshotBegin(void)

public: virtual bool __stdcall CVssJetWriter::OnPrepareSnapshotEnd(bool)

public: virtual bool __stdcall CVssJetWriter::OnThawBegin(void)

public: virtual bool __stdcall CVssJetWriter::OnThawEnd(bool)

public: virtual bool __stdcall CVssWriter::OnBackOffIOOnVolume(unsigned short *,struct _GUID,struct _GUID)

public: virtual bool __stdcall CVssWriter::OnBackupComplete(class IVssWriterComponents *)

public: virtual bool __stdcall CVssWriter::OnBackupShutdown(struct _GUID)

public: virtual bool __stdcall CVssWriter::OnContinueIOOnVolume(unsigned short *,struct _GUID,struct _GUID)

public: virtual bool __stdcall CVssWriter::OnIdentify(class IVssCreateWriterMetadata *)

public: virtual bool __stdcall CVssWriter::OnPostRestore(class IVssWriterComponents *)

public: virtual bool __stdcall CVssWriter::OnPostSnapshot(class IVssWriterComponents *)

public: virtual bool __stdcall CVssWriter::OnPreRestore(class IVssWriterComponents *)

public: virtual bool __stdcall CVssWriter::OnPrepareBackup(class IVssWriterComponents *)

public: virtual bool __stdcall CVssWriter::OnVSSApplicationStartup(void)

public: virtual bool __stdcall CVssWriter::OnVSSShutdown(void)

public: virtual void __stdcall CVssJetWriter::OnAbortBegin(void)

public: virtual void __stdcall CVssJetWriter::OnAbortEnd(void)

public: void __stdcall CVssJetWriter::Uninitialize(void)

Imported Functions List

The following functions are imported by this dll:

• msvcrt.dll:
  

  _CxxThrowException

  _XcptFilter

  __CxxFrameHandler

  __dllonexit

  _amsg_exit

  _beginthreadex

  _callnewh

  _errno

  _except_handler4_common

  _initterm

  _lock

  _onexit

  _purecall

  _resetstkoflw

  _unlock

  _vsnprintf

  _vsnwprintf

  _wcsdup

  _wcsicmp

  _wcsnicmp

  _wtoi

  _wtoi64

  free

  iswdigit

  malloc

  memcmp

  memcpy

  memcpy_s

  memmove

  memmove_s

  memset

  public: __thiscall exception::exception(char const * const &)

  public: __thiscall exception::exception(class exception const &)

  public: __thiscall exception::exception(void)

  public: virtual __thiscall exception::~exception(void)

  public: virtual __thiscall type_info::~type_info(void)

  public: virtual char const * __thiscall exception::what(void)const

  qsort

  realloc

  swscanf

  tolower

  towlower

  towupper

  void __cdecl terminate(void)

  wcscat_s

  wcschr

  wcsncmp

  wcspbrk

  wcsrchr

  wcsstr

  wcstok

  wcstoul

• ntdll.dll:
  

  EtwGetTraceEnableFlags	EtwGetTraceEnableLevel	EtwGetTraceLoggerHandle	EtwRegisterTraceGuidsW
  EtwTraceMessage	EtwUnregisterTraceGuids	NtClose	NtCreateFile
  NtFsControlFile	NtOpenDirectoryObject	NtOpenSymbolicLinkObject	NtQueryDirectoryObject
  NtQueryInformationFile	NtQuerySymbolicLinkObject	NtQuerySystemInformation	NtQueryVolumeInformationFile
  RtlAdjustPrivilege	RtlGetSetBootStatusData	RtlInitUnicodeString	RtlIpv4StringToAddressW
  RtlIpv6StringToAddressW	RtlNtStatusToDosError	RtlUnlockBootStatusData

• api-ms-win-core-file-l1-2-1.dll:
  

  KernelBase!CreateDirectoryW	KernelBase!CreateFileW
  KernelBase!DeleteFileW	KernelBase!FindClose
  KernelBase!FindFirstFileW	KernelBase!FindNextFileW
  KernelBase!GetDriveTypeW	KernelBase!GetFileAttributesW
  KernelBase!GetFullPathNameW	KernelBase!GetLogicalDrives
  KernelBase!GetVolumeInformationW	KernelBase!GetVolumeNameForVolumeMountPointW
  KernelBase!GetVolumePathNameW	KernelBase!GetVolumePathNamesForVolumeNameW
  KernelBase!ReadFile	KernelBase!SetFilePointer
  KernelBase!SetFilePointerEx	KernelBase!WriteFile

• api-ms-win-core-memory-l1-1-2.dll:
  

  KernelBase!VirtualAlloc

  KernelBase!VirtualProtect

  KernelBase!VirtualQuery

• api-ms-win-core-libraryloader-l1-2-0.dll:
  

  KernelBase!FindResourceExW	KernelBase!FreeLibrary	KernelBase!FreeResource	KernelBase!GetModuleFileNameW
  KernelBase!GetModuleHandleW	KernelBase!GetProcAddress	KernelBase!LoadLibraryExW	KernelBase!LoadResource
  KernelBase!LoadStringW	KernelBase!LockResource	KernelBase!SizeofResource

• api-ms-win-core-registry-l1-1-0.dll:
  

  KernelBase!RegCloseKey	KernelBase!RegCreateKeyExW	KernelBase!RegDeleteValueW	KernelBase!RegEnumKeyExW
  KernelBase!RegEnumValueW	KernelBase!RegLoadKeyW	KernelBase!RegOpenKeyExW	KernelBase!RegQueryInfoKeyW
  KernelBase!RegQueryValueExW	KernelBase!RegSetValueExW	KernelBase!RegUnLoadKeyW

• api-ms-win-core-synch-l1-2-0.dll:
  

  KernelBase!CreateEventW	KernelBase!CreateMutexW
  KernelBase!CreateSemaphoreExW	KernelBase!InitializeCriticalSectionAndSpinCount
  KernelBase!ReleaseMutex	KernelBase!ReleaseSemaphore
  KernelBase!ResetEvent	KernelBase!SetEvent
  KernelBase!Sleep	KernelBase!WaitForSingleObject
  KernelBase!WaitForSingleObjectEx	ntdll!RtlDeleteCriticalSection
  ntdll!RtlEnterCriticalSection	ntdll!RtlInitializeCriticalSection
  ntdll!RtlLeaveCriticalSection

• api-ms-win-core-sysinfo-l1-2-1.dll:
  

  KernelBase!GetComputerNameExW	KernelBase!GetSystemInfo	KernelBase!GetSystemTime
  KernelBase!GetSystemTimeAsFileTime	KernelBase!GetSystemWindowsDirectoryW	KernelBase!GetTickCount
  KernelBase!GetTickCount64	KernelBase!GetVersionExW	KernelBase!GetWindowsDirectoryW

• api-ms-win-core-heap-l1-2-0.dll:
  

  KernelBase!GetProcessHeap

  KernelBase!HeapDestroy

  ntdll!RtlAllocateHeap

  ntdll!RtlFreeHeap

• api-ms-win-eventing-provider-l1-1-0.dll:
  

  ntdll!EtwEventRegister

  ntdll!EtwEventSetInformation

  ntdll!EtwEventUnregister

  ntdll!EtwEventWriteTransfer

• api-ms-win-core-string-l1-1-0.dll:
  

  KernelBase!MultiByteToWideChar

  KernelBase!WideCharToMultiByte

• api-ms-win-core-errorhandling-l1-1-1.dll:
  

  KernelBase!GetLastError	KernelBase!RaiseException	KernelBase!SetErrorMode
  KernelBase!SetUnhandledExceptionFilter	KernelBase!UnhandledExceptionFilter	ntdll!RtlRestoreLastWin32Error

• api-ms-win-core-string-l2-1-0.dll:
  

  KernelBase!CharNextW

  KernelBase!CharPrevW

• api-ms-win-core-io-l1-1-1.dll:
  

  kernel32!DeviceIoControl

• api-ms-win-core-handle-l1-1-0.dll:
  

  KernelBase!CloseHandle

• api-ms-win-core-heap-l2-1-0.dll:
  

  KernelBase!GlobalAlloc

  KernelBase!GlobalFree

  KernelBase!LocalAlloc

  KernelBase!LocalFree

• api-ms-win-core-processthreads-l1-1-2.dll:
  

  KernelBase!OpenProcessToken	KernelBase!OpenThreadToken	KernelBase!SetThreadToken	kernel32!CreateThread
  kernel32!GetCurrentProcess	kernel32!GetCurrentProcessId	kernel32!GetCurrentThread	kernel32!GetCurrentThreadId
  kernel32!ResumeThread	kernel32!TerminateProcess	kernel32!TlsAlloc	kernel32!TlsGetValue
  kernel32!TlsSetValue

• api-ms-win-core-profile-l1-1-0.dll:
  

  ntdll!RtlQueryPerformanceCounter

• api-ms-win-core-string-obsolete-l1-1-0.dll:
  

  kernel32!lstrcmpiW

  kernel32!lstrcpynW

• VssTrace.DLL:
  

  VssGetTracingContextPerThread	VssGetTracingSequenceNumber	VssIsTracingEnabled	VssIsTracingEnabledOnFunction
  VssIsTracingEnabledOnModule	VssIsTracingEnabledPerThread	VssSetTracingContextPerThread	VssTraceBinary
  VssTraceInitialize	VssTraceMessage	VssTraceUninitialize

• api-ms-win-core-processenvironment-l1-2-0.dll:
  

  KernelBase!ExpandEnvironmentStringsW

  KernelBase!GetCommandLineW

• api-ms-win-security-base-l1-2-0.dll:
  

  KernelBase!AddAccessAllowedAceEx	KernelBase!AddAccessDeniedAceEx	KernelBase!AddAce
  KernelBase!AllocateAndInitializeSid	KernelBase!CheckTokenMembership	KernelBase!CopySid
  KernelBase!CreateWellKnownSid	KernelBase!DuplicateToken	KernelBase!EqualDomainSid
  KernelBase!EqualSid	KernelBase!FreeSid	KernelBase!GetAce
  KernelBase!GetAclInformation	KernelBase!GetLengthSid	KernelBase!GetSidSubAuthorityCount
  KernelBase!GetTokenInformation	KernelBase!InitializeAcl	KernelBase!InitializeSecurityDescriptor
  KernelBase!IsValidSid	KernelBase!PrivilegeCheck	KernelBase!RevertToSelf
  KernelBase!SetSecurityDescriptorDacl	KernelBase!SetSecurityDescriptorGroup	KernelBase!SetSecurityDescriptorOwner

• api-ms-win-core-debug-l1-1-1.dll:
  

  KernelBase!OutputDebugStringA

  KernelBase!OutputDebugStringW

• api-ms-win-core-localization-l1-2-1.dll:
  

  KernelBase!FormatMessageW

• RPCRT4.dll:
  

  RpcStringFreeW

  UuidCreate

  UuidFromStringW

  UuidToStringW

• DSROLE.dll:
  

  DsRoleFreeMemory

  DsRoleGetPrimaryDomainInformation

• api-ms-win-core-file-l2-1-1.dll:
  

  KernelBase!CopyFileExW

• WS2_32.dll:
  

  GetNameInfoW

  InetPtonW

  WSAStartup

• api-ms-win-core-delayload-l1-1-1.dll:
  

  KernelBase!DelayLoadFailureHook

  KernelBase!ResolveDelayLoadedAPI

• api-ms-win-core-heap-obsolete-l1-1-0.dll:
  

  kernel32!GlobalLock

  kernel32!GlobalUnlock

• api-ms-win-eventlog-legacy-l1-1-0.dll:
  

  advapi32!DeregisterEventSource

  advapi32!RegisterEventSourceW

  advapi32!ReportEventW

• api-ms-win-core-kernel32-legacy-l1-1-1.dll:
  

  kernel32!SetVolumeMountPointW

• api-ms-win-core-util-l1-1-0.dll:
  

  ntdll!RtlDecodePointer

  ntdll!RtlEncodePointer

• bcd.dll:
  

  BcdImportStoreWithFlags

  BcdSetSystemStoreDevice