What is twunk_16.exe?
twunk_16.exe is part of Twain Thunker and developed by Twain Working Group according to the twunk_16.exe version information.
twunk_16.exe's description is "Twain_32.dll Client's 16-Bit Thunking Server"
twunk_16.exe is usually located in the 'C:\WINDOWS\system32\' folder.
None of the anti-virus scanners at VirusTotal reports anything malicious about twunk_16.exe.
If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.
Vendor and version information [?]
The following is the available information on twunk_16.exe:
| Property | Value |
|---|---|
| Product name | Twain Thunker |
| Company name | Twain Working Group |
| File description | Twain_32.dll Client's 16-Bit Thunking Server |
| Internal name | Twunk_16 |
| Original filename | Twunk_16.exe |
| Product version | 1,6,0,1 |
| File version | 1,6,0,1 |
Here's a screenshot of the file properties when displayed by Windows Explorer:
| Product name | Twain Thunker |
| Company name | Twain Working Group |
| File description | Twain_32.dll Client's 16-Bit Thunkin.. |
| Internal name | Twunk_16 |
| Original filename | Twunk_16.exe |
| Product version | 1,6,0,1 |
| File version | 1,6,0,1 |
Digital signatures [?]
twunk_16.exe is not signed.
VirusTotal report
None of the 52 anti-virus programs at VirusTotal detected the twunk_16.exe file.
Folder name variants
twunk_16.exe may also be located in other folders than C:\WINDOWS\system32\. The most common variants are listed below:
- D:\WINDOWS\system32\
- C:\WINNT\system32\
- E:\WINDOWS\system32\
- F:\WINDOWS\system32\
- G:\WINDOWS\system32\
- H:\WINDOWS\system32\
- C:\WINDOWS.0\system32\
- C:\WINDOWS2\system32\
- C:\SECONDW\System32\
- I:\WINDOWS\system32\
- C:\WINXP\system32\
- K:\WINDOWS\system32\
- c:\%USERNAME%\system32\
- D:\WINDOWS.0\system32\
- D:\WINDOOF\system32\
- C:\WINXP2\system32\
- C:\WINDOWSR\system32\
- C:\WINDOWS.3\system32\
- C:\WIN\system32\
Hashes [?]
| Property | Value |
|---|---|
| MD5 | 74b8802ce5cd6f4e7ac83152e0e17d25 |
| SHA256 | 94ad5215dd020fff94744b7f3641abe2baaa11f96a6b0fcd35291e6ed64d1622 |
Error Messages
These are some of the error messages that can appear related to twunk_16.exe:
twunk_16.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
twunk_16.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.
Twain_32.dll Client's 16-Bit Thunking Server has stopped working.
End Program - twunk_16.exe. This program is not responding.
twunk_16.exe is not a valid Win32 application.
twunk_16.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.
What will you do with twunk_16.exe?
To help other users, please let us know what you will do with twunk_16.exe:
What did other users do?
The poll result listed below shows what users chose to do with twunk_16.exe. 30% have voted for removal. Based on votes from 335 users.
NOTE: Please do not use this poll as the only source of input to determine what you will do with twunk_16.exe.
Malware or legitimate?
If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.
And now some shameless self promotion ;)
Hi, my name is Roger Karlsson. I've been running this website since 2006. I want to let you know about the FreeFixer program. FreeFixer is a freeware tool that analyzes your system and let you manually identify unwanted programs. Once you've identified some malware files, FreeFixer is pretty good at removing them. You can download FreeFixer here. It runs on Windows 2000/XP/2003/2008/2016/2019/Vista/7/8/8.1/10. Supports both 32- and 64-bit Windows.
If you have questions, feedback on FreeFixer or the freefixer.com website, need help analyzing FreeFixer's scan result or just want to say hello, please contact me. You can find my email address at the contact page.
Comments
Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.
I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.
Brian Lawrence writes
Hello,
This is a legitimate file. Don't remember which program
it is for right now but it has to do with the printer.
All The Best
# 20 Aug 2010, 19:51
Lubos writes
The TWAIN Working Group DOES provide some software that allows manufacturers of scanners and digital cameras to write drivers and for software developers to write applications that work together. It is for accessing your parallel port. Don't touch em.
Quick hint. Don't delete system files just cause you find them suspicious.
There is no contradiction in any thing. It's system files 16-bit and 32-bit
TWUNK_16.EXE and TWUNK_32.EXE are TWAIN Thunker modules.
16-bit TWAIN.DLL and the 32-bit TWAIN_32.DLL. are TWAIN Data Source Manager modules
Quote:
http://www.twain.org/faq.htm
What is the exact role of the 16-bit TWUNK_16.EXE for 32-bit Windows TWAIN scanning? Is it possible to disable it?
Answer: Under MS Windows there are two TWAIN Data Source Manager modules, the 16-bit TWAIN.DLL and the 32-bit TWAIN_32.DLL. Each one when loaded will attempt to start the other one through one of the TWAIN Thunker modules (TWUNK_16.EXE or TWUNK_32.EXE) so it could enumerate all the TWAIN Data Sources installed on the system, both 16 and 32-bit. Without TWUNK_16.EXE TWAIN_32.DLL (and the application that loaded TWAIN_32.DLL) would be unable to see any 16-bit Data Sources. And without TWUNK_32.EXE TWAIN.DLL would be not able to see 32-bit Data Sources.
# 29 Nov 2010, 5:51
Roger Karlsson writes