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I my VC++ program I call a small program written by Borland C++3.1 names: robot0.exe but this program functions to send data from PC to robot controller Win 95 operating system via COM port. However when it is called an error indicates in message box immediately.
16 Bits MS-DOS Subsytem
D:\WINDOWS\system32\cmd.exe
The system cannot open COM1 port requested by the application. Choose "Close" to terminate the application.
I kindly recieve any suggestion form you. many thank for your reply
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It's possible your machine doesn't have a COM1. Look in Device Manager, under the Ports section. Make sure the Communications Port is labeled (COM1). Or the port is already open by another process, like a modem DialUp connection, or some other piece of software talking to the controller.
You can't have two processes using the same COM port at the same time.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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You need to investigate into the Compatibility tab.
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how to make read only usb drive to writable one
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That would depend entirely on what made it "read only" in the first place.
One one of my thumb drives, there's a small, two position switch that makes it ReadOnly.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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i am having usb which is paritioned as readonly. now i have to write files into it. how to do this?
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Your going to have to use a piece of software, like Partition Magic, to change the ReadOnly attribute on that partition.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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hi to all!!
when i shut down my laptop there comes End Now window ....
i am using xp home edition.please tell me why does it come like this...
why it does not shut down without this dialog box
thanks in advance....
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It happens because there's at least one application or service that is not shutting down fast enough. The title of the application should be in the titlebar of that window.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Yes, it means that a process is not exiting (closing or whatever) fast enough when it receives the message to shutdown.
My Symantec AntiVirus 2006 has a couple of processes that do the same thing; they don't stop fast enough. I don't do anything; I give them more time to finish; they eventually do. If you give the process (whatever it is) time to finish and if it does then it is probably best to always do that. If the dialog box does not go away after a couple of minutes or fast enough for your requirements then you can push the End Now button and probably there will not be any damage to your data or whatever. It is best however to let the process finish if possible.
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How common or uncommon is it that most employees have debug privileges for their Windows accounts?
I am a programmer and I know that many programmers use API functions that require debug privileges. I have tried to ask security programmers if it is common or uncommon for typical users to have debug privileges but they are not clear in their answers.
I am not a security specialist but as best as I understand Windows security it is possible to grant debug privileges to specific executables. Is management reluctant to do that or is it an acceptable compromise?
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IIUC you only need the debug priv to debug processes started by another user. You can always debug processes that are running under your account. Giving a non-admin the debug priv is a security hole because that person could inject code into a system-level process and make it do something like run the Users control panel, and from there the person could add their account to the admins group.
Last modified: 18hrs 12mins after originally posted --
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Are you sure?
The ReadProcessMemory function states explicitly that the handle it uses must have PROCESS_VM_READ access. I don't know if PROCESS_VM_READ access is the same as Debug privileges or if PROCESS_VM_READ access requires Debug privileges but probably one of them is true since I have said in programming forums and such that the ReadProcessMemory function requires debug privileges and no one has said it is not true.
If it is true that any process that an account creates can use debugging functions on all other processes that the account creates then that is a security problem, since most users are not developers. If a non-developer executes a program that can access other processes then developers of the software would have access to data they should not have access to.
-- modified at 3:03 Saturday 10th March, 2007
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You have complete permissions (Full Control) to any process you create.
You can inspect a process's access control list using Process Explorer[^]. Go to the process Properties, Security tab and click Permissions. If you then go to the Advanced editor (click Advanced) and Edit, you'll see all the permissions detailed, including Read Memory.
You only need the Debug privilege to debug processes that you didn't create (and therefore don't have permission in the process's access control list).
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Is there a way to enumerate all the global shortcut keys that are, at a point of time, registered in the system?
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I think there is but I don't remember the details. As best as I remember, the answer is obscure and not logical. My memory keeps telling me that it is a matter of enumerating global hooks in some way, but that could be wrong. I know it is not logical that they would be included as global hooks, but as I said, whatever the solution is, it is not logical.
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I have configured a FTP server on our lab system using IIS6.0 on windows xp pro. I am able to connect to the server from any of our lab systems, but not able to connect to it from systems at home. Can someone help me on this? also I am using port 24 rather than standard 21.
-Pavan
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There's probably a firewall in the way blocking you. This is something you'll have to take up with your company's IT department to allow you access to it from the outside world. Most companies I know wouldn't allow this because it's a monster of a secuirty risk and an FTP server exposed to the outside world is a great target for idiots to try and store their 'warez on a "free" FTP server.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Hi,
I just bought a new system with 2 hard drives of 320GB each. after installing windows xp pro, it only recognizes 128GB of each one. does anyone else here know how to fix this?
Thank you!
kind regards,
I am a SysAdmin, I battle my own daemons.
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See here[^].
To get setup to recognize disks of this size, you probably need an install CD with SP2 integrated.
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SP2 solved my problem, thanks!... will rate once i get home 
I am a SysAdmin, I battle my own daemons.
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Check the disk management in your computer. Are there any unused partition in your system?
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How do Trojen horses enter my mac using opn ports ?
My exact question is, i have an application which has an open port on which a socket is listning and accepting connectins but not accepting any further commands until he connection is authenticated, how is it that a virus has got through my appliction and enterd the system.
any help would be greatly appreciated.
DK
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It didn't enter through that port, unless you used a well-known port that has a known security flaw. It more than likely got in using some other route.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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I also believe it is rather unlikely that someone would specifically target your application with a custom tailored worm, if that application is not that well known outside your company.
I'd like to clarify: If it is a trojan, that was recognized by an anti-virus software, it probably was not custom tailored. Additionally, trojans usually come hidden in another application.
Chances are that the malware was inside an application that someone downloaded from the web, and the LAN security level was not high enough to prevent it from spreading. Or - that always is a possibility - someone deliberately planted it there.
Cheers,
Sebastian
--
Contra vim mortem non est medicamen in hortem.
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