vm303_sti.exe is used by webcams from Vimicro. This program is a driver for your webcam and is an essential part of keeping your webcam working. Removing this program may cause your webcam not to work anymore. 

If you want a detailed security rating about your vm303_sti.exe (and all other running background processes) read the following user opinions, and download the free trial version of Security Task Manager.

Note: Any malware can be named anything - so you should check where the files of the running processes are located on your disk. If a "non-Microsoft" .exe file is located in the C:\Windows or C:\Windows\System32 folder, then there is a high risk for a virus, spyware, trojan or worm infection! Check it out!

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Users Opinions

537 users ask for this file. 8 users rated it as not dangerous. 10 users rated it as not so dangerous. 18 users rated it as neutral. 12 users rated it as little bit dangerous. 3 users rated it as dangerous. 1 user didn't rate it ("don't know").

All comments about vm303_sti.exe: probably just some software of my web cam. it appeard after installing the driver.   Wei Long Is ran under the USB WebCAM i bought   Kevin Jones It highjacked my browser   Carlos Ayala Part of a webcam installation. - C:\WINDOWS\VM303_STI.EXE VIMICRO USB PC Camera (ZC0301PLH)   Ryan Seems to be a file from a Webcam program.   L.Kwisthout from A4 tech webcam   morbid angel Driver for Vimicro USB webcam  See also: Link   smr i agree, web cam   antonyclark anyway it takes lots of system resources   YK SONG Some kind of driver or software for webcam. In bad cases takes up to 95% of CPU time.   Ali webcam malware   bran kop I think it has something to do with webcam or PCI RAID controller card... noticed it after I installed both. However once my system goes into screen saver mode, can't get back to desktop normally and when I do VM303_STI is taking up 99 percent of processor time. Shutting it down from processes tree doesn't really effect my system that much. Haven't been able to trace its purpose and or utility.   Asif Attique Its the driver for my webby but its suppiciosuly called bigdog303 on msconfig   it hogs CPU using 99% at all times i banned process and computer faster and ebcam still works   this is a webcam installation from an a4tech usb camera   Roque Maneja It came with my webcam, but uses a lot of CPU ressources even thou my webcam is not connected?   Torben Rudgaard It only causes problems when my Webcam is unplugged - took me ages to figure out what it was   Henry VI Micro Camera Driver Watcher (TSR)   Blueeyedchinese Driver for Chinese-brand 'Vimicro' USB Webcam.   Fred Is part of WebCam installation   Geo Comes with ViMicro USB PC Camera   Player One This is still image capture interface for ZC0301PLH camera. When this small program is runing I cant have access to other USB webcams.   A. Remizov It is related to USB cam, my cam works fine, but that starts with window and report error, and after that the report crash. But my cam works fine.   Goran It is part of virtual machine for Kinstone web camera   When editing videos this file sometimes locks up cpu to 99% and consumes up to 300 MB memory. I dont know if that is a bug but it happens more often than not   Yep, cheapo webcam app   Gregorious I if you have a Leadtek Winfast TV2000XP Expert TV tuner, you may get the error "Cannot preview video stream". See the site I've listed or remove the file from startup.  See also: Link   Mark Lewis i think it indeed is dangerous... and i sure it comes from webcam... in my case too it came from USB webcam called PC camera.   sameer rajimwale I delited it and now I have no disturbing error window coming on screen   alex Comes with webcam, takes up resources of pc - therefore lags it. Bugs some applications   Focius A4 tech webcam here   djaydino The tool crashes at booting up Windows XP.   Chris from A4 tech webcam, locks up cpu to 50%, I blocked them.   pipipi314 Because of this file my TV Tunner does not work! It may be a webcam driver process but I have to kill it before watching TV.   nelusan A4 tech webcam   Kenneth Came with a Webcam, Apparently its required to use it but i've been hearing things about it. I think it might be smarter just to get a webcam that doesnt give you a potentially adware/spyware application. (Also when i boot up my webcam which is now not working theres weird classical music playing for about 1-4 minutes)   Donny THE FIX !!! It's a TSR proccess called VM303_STI that is launched at startup belonging to A4 tech webcam. To stop it: start menu - run - type "msconfig" (ok) - goto Startup - search for "VM303_STI" - uncheck it - ok - restart - all done   king I haven't installed any web camera on my PC, but vm303_sti.exe is running on my PC somehow.   silver windows 7 - crashed hard drives and lags all time - Uninstall it or find better driver if it is fixed   It is web cam SW (I got this error message after installing Logitech WebCam)   If you know more about vm303_sti.exe, share your knowledge and help other users. Security Rating:  --- don't know ---  1 (not dangerous)  2  3 (neutral)  4  5 (dangerous) What do you know about this file: Link for more details: Your Name:

More process information

Is vm303_sti.exe spyware or a virus, trojans, adware or worm? Is there a known vm303_sti.exe error?

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Other Processes

btwdins.exe shellmon.exe updates from hp.exe vm303_sti.exe dpupdchk.exe omniserv.exe ifrmewrk.exe winlog.exe hpqwmi.exe calmain.exe aoltpspd.exe [all processes]