Windows 7 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 7, 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:	6.1.7100.0 (winmain_win7rc.090421-1700)
Company:	Microsoft Corporation
Product Name:	Microsoft Windows Operating System
DLL popularity	Low - 7 other DLL files in system32 directory are statically linked to this file.
File Size:	1,096 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	919,552 Bytes	81.9%	Read, Execute	Code
.data	0x000e2000	4,608 Bytes	0.4%	Write, Read	Initialized Data
.rsrc	0x000e4000	137,216 Bytes	12.2%	Read	Initialized Data
.reloc	0x00106000	59,392 Bytes	5.3%	Read, Discardable	Initialized Data

Static Linking

vssapi.dll is statically linked to the following files:

msvcrt.dll
ATL.DLL
ntdll.dll
API-MS-Win-Core-ErrorHandling-L1-1-0.dll
API-MS-Win-Core-File-L1-1-0.dll
API-MS-Win-Core-Handle-L1-1-0.dll
API-MS-Win-Core-Interlocked-L1-1-0.dll
API-MS-Win-Core-IO-L1-1-0.dll
API-MS-Win-Core-LibraryLoader-L1-1-0.dll
API-MS-Win-Core-Misc-L1-1-0.dll
API-MS-Win-Core-ProcessThreads-L1-1-0.dll
API-MS-Win-Core-Profile-L1-1-0.dll
API-MS-Win-Core-Synch-L1-1-0.dll
API-MS-Win-Core-SysInfo-L1-1-0.dll
KERNEL32.dll
VssTrace.DLL
API-MS-Win-Core-Debug-L1-1-0.dll
API-MS-Win-Security-Base-L1-1-0.dll
RPCRT4.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

fvewiz.dll
iasdatastore.dll
ifsutilx.dll
sdengin2.dll
spp.dll
srcore.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	136,784 Bytes	12.2%
Total	4	136,784 Bytes	12.2%

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 200 dialogs)

No dialog resources in this file.

String resources in this dll (up to 200 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

  _snwscanf_s

  _ultow_s

  _unlock

  _vsnprintf

  _vsnwprintf

  _wcsdup

  _wcsicmp

  _wcslwr

  _wcsnicmp

  _wcsupr

  _wtoi

  _wtoi64

  free

  iswdigit

  malloc

  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

  strncmp

  swprintf_s

  swscanf

  towlower

  towupper

  void __cdecl terminate(void)

  wcscat_s

  wcschr

  wcscpy_s

  wcsncmp

  wcsncpy_s

  wcsnlen

  wcspbrk

  wcsrchr

  wcsstr

  wcstok

  wcstoul

• ATL.DLL:
  

  AtlComPtrAssign	AtlInternalQueryInterface	AtlModuleAddTermFunc
  AtlModuleGetClassObject	AtlModuleInit	AtlModuleTerm
  AtlModuleUpdateRegistryFromResourceD

• ntdll.dll:
  

  EtwGetTraceEnableFlags	EtwGetTraceEnableLevel	EtwGetTraceLoggerHandle	EtwRegisterTraceGuidsW
  EtwTraceMessage	EtwUnregisterTraceGuids	LdrGetDllHandle	LdrGetProcedureAddress
  NtAdjustPrivilegesToken	NtAllocateUuids	NtClose	NtCreateEvent
  NtCreateFile	NtCreateKey	NtDeleteFile	NtDeleteKey
  NtDeleteValueKey	NtDeviceIoControlFile	NtEnumerateKey	NtLoadKey
  NtOpenDirectoryObject	NtOpenFile	NtOpenKey	NtOpenProcessToken
  NtOpenSymbolicLinkObject	NtOpenThreadToken	NtQueryAttributesFile	NtQueryDirectoryObject
  NtQueryInformationFile	NtQueryKey	NtQuerySymbolicLinkObject	NtQuerySystemInformation
  NtQueryValueKey	NtQueryVolumeInformationFile	NtResetEvent	NtSaveKey
  NtSetSecurityObject	NtSetValueKey	NtUnloadKey	NtWaitForSingleObject
  RtlAddAccessAllowedAceEx	RtlAllocateAndInitializeSid	RtlAllocateHeap	RtlCreateAcl
  RtlCreateSecurityDescriptor	RtlFreeAnsiString	RtlFreeHeap	RtlFreeSid
  RtlGUIDFromString	RtlGetSetBootStatusData	RtlGetVersion	RtlInitAnsiString
  RtlInitUnicodeString	RtlLengthSecurityDescriptor	RtlLengthSid	RtlNtStatusToDosError
  RtlSetDaclSecurityDescriptor	RtlSetOwnerSecurityDescriptor	RtlStringFromGUID	RtlUnlockBootStatusData

• API-MS-Win-Core-ErrorHandling-L1-1-0.dll:
  

  kernel32!GetLastError

  kernel32!SetUnhandledExceptionFilter

  kernel32!UnhandledExceptionFilter

• API-MS-Win-Core-File-L1-1-0.dll:
  

  kernel32!CreateFileW

  kernel32!GetDriveTypeW

  kernel32!GetVolumePathNameW

• API-MS-Win-Core-Handle-L1-1-0.dll:
  

  kernel32!CloseHandle

• API-MS-Win-Core-Interlocked-L1-1-0.dll:
  

  KernelBase!InterlockedCompareExchange	KernelBase!InterlockedDecrement	KernelBase!InterlockedExchange
  KernelBase!InterlockedIncrement

• API-MS-Win-Core-IO-L1-1-0.dll:
  

  kernel32!DeviceIoControl

• API-MS-Win-Core-LibraryLoader-L1-1-0.dll:
  

  KernelBase!FreeLibrary

  KernelBase!GetProcAddress

  KernelBase!LoadLibraryExA

  KernelBase!LoadStringW

• API-MS-Win-Core-Misc-L1-1-0.dll:
  

  KernelBase!GlobalFree

  KernelBase!Sleep

  KernelBase!lstrlenW

• API-MS-Win-Core-ProcessThreads-L1-1-0.dll:
  

  KernelBase!OpenProcessToken	KernelBase!OpenThreadToken	KernelBase!SetThreadToken	kernel32!CreateThread
  kernel32!GetCurrentProcess	kernel32!GetCurrentProcessId	kernel32!GetCurrentThreadId	kernel32!TerminateProcess

• API-MS-Win-Core-Profile-L1-1-0.dll:
  

  ntdll!RtlQueryPerformanceCounter

• API-MS-Win-Core-Synch-L1-1-0.dll:
  

  kernel32!CreateEventW	kernel32!InitializeCriticalSectionAndSpinCount
  kernel32!ReleaseMutex	kernel32!ResetEvent
  kernel32!WaitForSingleObject	ntdll!RtlDeleteCriticalSection
  ntdll!RtlEnterCriticalSection	ntdll!RtlInitializeCriticalSection
  ntdll!RtlLeaveCriticalSection

• API-MS-Win-Core-SysInfo-L1-1-0.dll:
  

  KernelBase!GetSystemTimeAsFileTime

  KernelBase!GetTickCount

• KERNEL32.dll:
  

  CopyFileExW	CreateDirectoryW	CreateMutexW
  CreateSemaphoreW	DelayLoadFailureHook	DeleteFileW
  ExpandEnvironmentStringsW	FindClose	FindFirstFileW
  FindNextFileW	FindResourceW	FormatMessageW
  FreeResource	GetCommandLineW	GetCurrentThread
  GetFileAttributesW	GetFullPathNameW	GetLogicalDrives
  GetModuleHandleW	GetProcessHeap	GetSystemTime
  GetSystemWindowsDirectoryW	GetTickCount64	GetVersionExW
  GetVolumeInformationW	GetVolumeNameForVolumeMountPointW	GetVolumePathNamesForVolumeNameW
  GetWindowsDirectoryW	GlobalAlloc	GlobalFree
  GlobalLock	GlobalUnlock	HeapFree
  LoadLibraryExW	LoadLibraryW	LoadResource
  LocalAlloc	LockResource	MultiByteToWideChar
  OutputDebugStringW	RaiseException	ReadFile
  RegCloseKey	RegCreateKeyExW	RegDeleteValueW
  RegEnumValueW	RegLoadKeyW	RegOpenKeyExW
  RegQueryInfoKeyW	RegQueryValueExW	RegSetValueExW
  RegUnLoadKeyW	ReleaseSemaphore	ResumeThread
  SetErrorMode	SetEvent	SetFilePointer
  SetFilePointerEx	SetLastError	SetVolumeMountPointW
  SizeofResource	TlsAlloc	TlsGetValue
  TlsSetValue	WaitForSingleObjectEx	WideCharToMultiByte
  WriteFile	ntdll!RtlAllocateHeap	ntdll!RtlDecodePointer
  ntdll!RtlEncodePointer

• VssTrace.DLL:
  

  VssGetTracingContextPerThread	VssGetTracingSequenceNumber	VssIsTracingEnabled	VssIsTracingEnabledOnFunction
  VssIsTracingEnabledOnModule	VssIsTracingEnabledPerThread	VssSetTracingContextPerThread	VssTraceBinary
  VssTraceInitialize	VssTraceMessage	VssTraceUninitialize

• API-MS-Win-Core-Debug-L1-1-0.dll:
  

  KernelBase!OutputDebugStringA

• API-MS-Win-Security-Base-L1-1-0.dll:
  

  KernelBase!AddAccessAllowedAceEx	KernelBase!AddAccessDeniedAceEx	KernelBase!AddAce
  KernelBase!AdjustTokenPrivileges	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

• RPCRT4.dll:
  

  RpcStringFreeW

  UuidCreate

  UuidFromStringW

  UuidToStringW