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ntvdm.exe


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#1 ryan12313

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Posted 20 November 2010 - 12:19 PM

Well I'm aware that ntvdm.exe isn't a virus, but I'm just wondering why theres 23 processes of it open in my taskmanager.

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#2 hamluis

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Posted 20 November 2010 - 12:48 PM

Can't answer that...I don't have any on this system.

I'll move you to Am I Infected for a deeper look.

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#3 quietman7

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Posted 20 November 2010 - 02:09 PM

The ntvdm.exe process is used when you run DOS or 16-Bit software on your windows pc. It will emulate the old DOS/16-bit os to allow older programs to run. If you are running DOS based (or 16-bit) programs on your computer, you should leave this process running.

ntvdm.exe (NT DOS Virtual Machine) Details

Since it simulates a 16-bit environment for MS-DOS and 16-bit Windows applications, the first question I would ask, is what other programs are you using at the time the multiple ntvdm processes starting appearing?

Monitoring Win16 Applications

Almost all performance monitoring tools can monitor 16-bit applications on Windows NT 4.0 Server and Workstation. However, because they run in the same process, the trick to monitoring more than one 16-bit application is to distinguish among the threads of the NTVDM process.

To monitor one 16-bit application, simply select the NTVDM process in Performance Monitor, Task Manager, Process Explode, Process Viewer, Process Monitor, or another tool. If you have multiple 16-bit processes running in NTVDM, you can distinguish them by their thread IDs in all tools except Process Monitor. You might have to start and stop the 16-bit process to determine which thread ID is associated with which 16-bit process...


Tools to investigate running processes and gather additional information to identify them and resolve problems:
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#4 ryan12313

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Posted 20 November 2010 - 11:09 PM

Ahh, must be my DOS Shells for DDoSing. (Legal purposes) Thanks for the information.




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