Files Required by Windows versions
|** XP also applies to Vista (Windows 7 is unknown)|
|File||Versions||What are they for|
|%sysdir%\stobject.dll||XP||It's used to manage system tray.|
|%windir%\explorer.exe||95 98 ME NT 2K XP||Windows shell.|
|%windir%\taskmon.exe||95 98 ME NT 2K XP||
This creates a database of the application programs you use and which files they load. The information is used by Windows Defrag (and by Norton Speedisk) to optimize the location of files on your hard drive so that Windows startup and program loading is faster.
Microsoft TDI transport service provider. Supports TCP/IP-specific functionality for Microsoft TDI transport service provider for Windows Sockets 2.0.
Notifies selected users and computers of administrative alerts. If the service is stopped, programs that use administrative alerts will not receive them. If this service is disabled, any services that explicitly depend on it will fail to start.
|bios||95/98/Me||Plug and Play BIOS driver.|
|biosxlat||95/98/Me||BIOS emulation driver.|
|combuff||95/98/Me||Communications buffer driver.|
|configmg||95/98/Me||Configuration manager driver.|
|dosmgr||95/98/Me||MS-DOS emulation manager.|
|dosnet||95/98/Me||Windows 3.1-compatible network helper driver.|
|drmkaud.sys||Microsoft Kernel DRM Audio Descrambler Filter.|
|ebios||95/98/Me||Extended BIOS driver.|
Microsoft group converter.
Used by installers ONLY in the RunOnce keys.
hhctrl.ocx is the Microsoft HTML Help component. I think
you've installed a program that using HTML help. To use hhctrl.ocx it
must be registered in the system. Usually the installer uses RunOnce
keys to register hhctrl.ocx.
Recommendation: Ignore this change. You may check for the version of
the hhctrl.ocx to be sure that you have the working version.
|ifsmgr||95/98/Me||File system manager driver.|
|int13||95/98/Me||BIOS hard disk emulation driver.|
Language indicator. Microsoft Corporation.
Useful in the multi language Windows.
|ios||95/98/Me||I/O Supervisor driver.|
Many Windows 95 driver models, such as IOS (for disk drivers) and the network, support dynamically loaded device drivers. These VxDs are not loaded by the VMM32 real-mode loader, but are loaded by a device loader that is responsible for loading and initializing the drivers at the correct time and in the correct order.
For example, for SCSI adapter miniport drivers, the device loader is *IOS. The entries for a SCSI adapter are found in this Registry key:
Because there is no StaticVxD=xxx line in this Registry entry, the VMM32 real-mode loader does nothing when Windows 95 identifies this device.
Configuration Manager attempts to find any device node that has a DevLoader= entry in the Registry. The device loader (in the previous example, *IOS) examines the Registry, finds the PortDriver= entry, loads the driver and any associated support drivers, and initializes the adapter.
Copyright (c) Microsoft Corporation
kmixer.sys is kernel audio mixer of Microsoft Windows.
I suggest you to add it to the Exclusion list (click on the "scissors" icon in the WatchDog window).
Kmixer may be closed and unloaded if it's not used. When you use audio it will be loaded again.
Windows Mount Manager.
Microsoft DLL file. It contains the functions for supporting
|ntkern||95/98/Me||Windows Driver Model.|
|pageswap||95/98/Me||Swapfile manager driver.|
|parity||95/98/Me||Memory parity driver.|
|perf||95/98/Me||System Monitor data collection driver.|
Loads Power Management settings.
Two entries are necessary, because the first is used before a user logon to Windows.
Not required if power management is not used.
Microsoft system driver.
"The Redbook system driver (redbook.sys) is the KS filter that manages the rendering of CD
digital audio. The Redbook driver is a client of the SysAudio system driver. The system routes
CD digital audio through the file system to the Redbook driver and then to the SysAudio driver.
The CD digital audio is rendered on the preferred wave output device (as set in the Multimedia
property pages in Control Panel)".
Dial-Up Networking Application.
Microsoft Corporation. Never used in the startup sections. Launched automatically when connecting using dial-up.
|rsrcmtr.exe||95 98 ME||Microsoft Corporation Resource meter. Very useful for check resources. Not used with Windows NT4/W2K/XP.|
MMHID.DLL is a part of operation system.
It's required if you use audio devices connected via USB port.
Executes RunOnceEx applications. Used only with Windows 95 in the RunOnce key. Leave it working and add to the Exclusion list.
Loads Power Management.
Two entries are nesessary, because the first (RunServices) works before user logon.
You may suspend of running powrprof.dll if you don't want to use power management.
Registry Checker for Windows 98/ME.
This checks your registry for errors and either repairs it or restores a backup copy. It also creates a new backup registry on the first successful startup each day and maintains a library of the five most recent registry backups. An indispensable safety and survival tool.
|shell||95/98/Me||Shell device driver.|
|shell32.dll||Windows Shell common DLL. Required!|
|spooler||95/98/Me||Print spooler driver.|
Windows default for System Restore.
Still Image Monitor (Stimon.exe) is a tool that is installed by Windows Millennium Edition (Me) and Windows 98 when a Universal Serial Bus (USB) scanning device is successfully enumerated. Stimon.exe is configured to start automatically during the Windows startup process, and is loaded from the following registry key:
Stimon contains two modules: Event Monitor and Control Center.
|svchost.exe||NT 2K XP||
Svchost.exe (Windows NT/2000/XP) is a generic host process name for services that are run from dynamic-link libraries (DLLs). The Svchost.exe file is located in the %SystemRoot%\System32
folder. At startup, Svchost.exe checks the services portion of the registry to construct a list of services that it needs to load. There can be multiple instances of
Svchost.exe running at the same time. Each Svchost.exe session can contain a grouping of services, so that separate services can be run depending on how and where
Svchost.exe is started. This allows for better control and debugging.
System Tray loads tray icons, like the Volume Control, Keyboard, Display, etc.
|update.sys||98 Me NT 2K XP||
Microsoft driver for updating system components.
It works with Windows'98 or higher.
|v86mmgr||95/98/Me||MS-DOS memory manager.|
|vcache||95/98/Me||Cache manager driver.|
|vcd||95/98/Me||Communications port driver.|
|vcdfsd||95/98/Me||CD-ROM filesystem driver.|
|vcomm||95/98/Me||Communications port Plug and Play driver.|
|vcond||95/98/Me||Console subsystem driver.|
|vdef||95/98/Me||Default file system driver.|
|vdmad||95/98/Me||Direct Memory Access controller driver.|
|vfat||95/98/Me||FAT filesystem driver.|
|vfbackup||95/98/Me||Floppy backup helper driver.|
|vfixd.vxd||Microsoft Video Phone helper|
|vflatd||95/98/Me||Linear aperture video driver.|
Driver for SIS 6326 graphics.
Required if use this chip..
|viagart.vxd||VIA vxd path for VMM. Required.|
|vmcpd||95/98/Me||Math coprocessor driver.|
|vmd||95/98/Me||Windows 3.1-compatible mouse driver.|
|vmm||98||Virtual Machine Manager.|
|vmm32.vxd||95/98/Me||Status: this is the kernel of Windows Required for Windows working|
|vmpol||95/98/Me||System idle-time driver.|
|vpicd||95/98/Me||Hardware interrupt manager.|
|vpowerd||95/98/Me||Advanced Power Management Driver.|
|vrtwd.386||Microsoft clock management|
|vrtwd.vxd||Microsoft clock management|
This VxD is used to execute network server on your computer.
If you have a problem with this file during Windows boot, read the article how to resolve this problem:
|vshare||95 98 Me||File sharing driver.|
|vtd||95 98 Me||Timer device driver.|
|vtdapi||95 98 Me||
Multimedia timer driver.
Part of Microsoft Windows .
||95 98 Me.||
Win32 subsystem driver.
Part of Microsoft Windows
|vxdldr||95 98 Me.||Dynamic device driver loader.|
TCP/IP TDI transport support.
Supports TCP/IP-specific functionality for Microsoft TDI transport service provider for Windows Sockets 2.0
Windows Sockets over IPX/SPX.
Supports IPX/SPX Windows Sockets 1.1–compatible transport.
Windows Sockets 1.1 transport service provider.
Kernel mode support for Windows Sockets 1.1–compatible transport service providers (currently only IPX/SPX).
Windows Sockets 2.0 transport service provider.
Kernel mode support for Windows Sockets 2.0–compatible transport service providers (currently only TCP/IP).