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A part of the problem, though probably not the whole problem, is that the file format of a .exe includes a header with non-executable information in the first 256 or 512 bytes of the file. This info is expected and required by Windows, but other OSs have different expectations. The actual beginning of executable code is located at some offset from the beginning of the file.
"Another day done - All targets met; all systems fully operational; all customers satisfied; all staff keen and well motivated; all pigs fed and ready to fly" - Jennie A.
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It seems that backups for the firm I work for have slowly migrated into my responsibility. As well as files, exchange mailboxes, SQL databases, etc my boss would like to back up System State on each critical server (2000, SP3 or SP4).
The Windows Backup Utility can schedule this backup for each night, and we've now set our tape backups to backup this file each night after it's been created on each server. Cool, that works great.
My question is this. Say one of our server dies and we have this magical system state backup - what can we do with it? On a couple of our servers it's over 2Gb. So what's included in this huge file?
I take it that in a disaster we'd have to install Windows again on the original machine, or another identical one in order to use this system state backup. Once that's done (we also backup the registry - is this necessary if you have system state?) do we just restore the system state, or would we still need to install other software as well? Is the other software, or just the software settings, included in the system state backup?
Thanks for any information! 
Look at the world about you and trust to your own convictions. - Ansel Adams
Meg's World - Blog
Photography
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There's a description of what gets backed up and restored here[^], and more info on the process in the links on this page[^]. I'm not sure how much you can recover using this, but it seems to give you a huge head start. One thing I'd be curious about is whether, in the event you had to reinstall Windows and restore the state, the previously installed apps would have to be reinstalled. I think simply restoring the registry (assuming the application directories were not under the %System% directory where they get wiped by reinstalling Windows) most of the applications would be left intact and usable.
Rather than guess, if you have a spare (or non-critical) server box available, do a backup, delete a few critical files, reboot, and see what you can accomplish. Better to have experience before you need it, I think.
"Another day done - All targets met; all systems fully operational; all customers satisfied; all staff keen and well motivated; all pigs fed and ready to fly" - Jennie A.
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Thanks Roger!
Apparently my dev box is going to be the guinea pig - make sure I have the proper motivation and all that 
Look at the world about you and trust to your own convictions. - Ansel Adams
Meg's World - Blog
Photography
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Hello ppl,
I want to use NTFS reparse points for my application using VC++. I want to move infrequently used files to remote storage and ve to create a link for that file in local volume. I got only documents regarding this not any implementation details or APIs. So plz if anybody know anything related to reparse points plz send me.
Valan
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can anyone tell me how i can query which is the currently installed anti virus packege in my OS[Windows 9x/2000/XP]
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My application needs to scan application files before it starts using them
So i planned that i needed to get the currently installed antivirus package n call createprocess
like some applications i could have the user input this manually in a cnfiguration dialog
i however have seen that microsoft office products word excel ppt etc
automatically do this when a doc is opened
so i guess the details of the current anti virus packege is stored in the shell of the OS somewhere like the registry
any ideas????
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Why not look at the running processes? You should be able to get the names of the different processes that run for each program if you spend some time on google. SO then you could have your app scan them and see what the user has loaded up, and advantage over this to is that you know that it's running and not just installed.
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what u r asking me is to keep a list of the proces names that will needed for differnt AV packages
the problem with this is that I dont know what package the end user will be using
for all i know he maybe using mcAffee or TrendMicro or some other obscure industrial AV solution
so i guess maintaining a list of the different processes is out of question
===========================================//==
I found out that in Nortons case the "Smart Scan" option has a list of filetype extensions in them
so as the NAV agent is started at startup itself
when the OS opens any file the AV agent immdeiately scans files if its extension is in the Smart Scan list
so that leasd to a conclusion that its not the Office application that calls the AV to start a scan but the AV itself that does this prior to opening the doc
===========================================//==
in which case there may not be any generic way to know which is the current AV package installed???
===========================================//==
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Maybe I'm confused, But your trying to see what the users AV package is correct? So how would keeping a list not be able to tell you?
For instance lets say mcfescn.exe is the process that is Mcafee AV, so if you scan the running processes and you see that mcfescn.exe is in memory you know that the person is using Mcafee as their AV program.
I do agree that using a list is going to be useless if they are using an obsure package but other then asking them I don't see a way to do it..
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What is it that differentiates binary semaphores and mutexes in an RTOS, especially Symbian
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I've got an XP machine here at worlk with 2 NIC's in it. This is being used to share my internet connection with my participants without IT seeing computers on the network that are not connected to the domain.
I have the 2nd NIC connecting to a switch which then runs out to a small internal LAN. What I am finding is many participants are spending their time playing online games and instant messaging. My requests for them to stop is falling on deaf ears at the moment. So I have given them all only user access and have uninstalled all components I feel at being used.
I would now like to make some changes to my machine (the default gateway) so it doesn't matter what they do on their machines they won't get through. I have searched using Google but my keyword selection must suck big time as I am only making hits to weird and wonderful sites or expert exchange where they want me to sign up to get the answers.
Anyone have any recommendations of software firewall products or route tables entries or similar?
From the stuff I have found so far some programs use hostnames so I could use the hosts file and point them to 127.0.0.1 but some programs go directly to the IP Address which would require something like a firewall. All help appreciated.
Michael Martin
Australia
"I suspect I will be impressed though, I am easy."
- Paul Watson 21/09/2003
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Disable Internet sharing on your computer and set up a single connection for your use.
"Another day done - All targets met; all systems fully operational; all customers satisfied; all staff keen and well motivated; all pigs fed and ready to fly" - Jennie A.
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Roger Wright wrote:
Disable Internet sharing on your computer and set up a single connection for your use.
Need the access to research tasks we ned to perform on the donated systems we work on. Also to apply updates to Windows, Linux and FreeBSD installations. Next suggestion.
Michael Martin
Australia
"I suspect I will be impressed though, I am easy."
- Paul Watson 21/09/2003
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Michael Martin wrote:
Next suggestion.
Identify naughty users. Whack their peepees.
Try the Sygate or ZoneAlarm firewall software. Though I prefer Sygate for my use, I think ZoneAlarm is more configurable.
"Another day done - All targets met; all systems fully operational; all customers satisfied; all staff keen and well motivated; all pigs fed and ready to fly" - Jennie A.
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under MS Windows 2000 Server, IIS
We have a web site: http://www.???.com
The physical root directory is: C:\Inetpub\wwwroot\???
We have another directory: C:\Inetpub\wwwroot\???\Users
Under this directory, we have hundreds of directories for users.
For example: C:\Inetpub\wwwroot\???\Users\john
for user john.
The problem is: if john wants to visit his home page, he has to type:
http://www.???.com/Users/john
Can we do something so that john only need to type:
http://www.???.com/john
Thanks,
Eric
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I remember a AdminScript into Inetpub to create Virtual Directory, you can find it and edit it to look into Users folder and make a virtual directory for each folder. Or try to do it manually 
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hxxbin
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To create a virtual directory, first create a physical directory in, say, your C:\.
For example: C:\MyRealDir\
Then,
>bring up MMC (Microsoft Management Console)
>File menu
>Add/Remove snap-in
>Add "Internet Information Service"
>Expand the nodes and navigate to the website of interest -- Mouse over and right click -- select "New"
>Select "Virtual Directory", which brings you virtual directory creation wizard
>Enter an Alias - whatever you like "MyDirAlias" for instance
>In the next step "Website Content Directory", enter "C:\MyRealDir"
Your virtual dir "MyDirAlias" is mapped to a physical dir "C:\MyRealDir". You put your html/asp/aspx/others files in "C:\MyRealDir".
To check, place a html file in your web folder, and access the site:
http://localhost/
Assuming you're playing with default host. If you've multiple sites on IIS, you must configure site port address using the snap-in - again, right click and select "properties" (one of these tabs)
Once port is configured (say, 5839 for instance):
http://www.mysite.com:5839
That's it.
Norman Fung
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is it possible to add an item to the list on the left of the dialog ?
( list with "my documents" "recent documents" "deskop", ... )
Thanks.
Maximilien Lincourt
"Never underestimate the bandwidth of a station wagon filled with backup tapes." ("Computer Networks" by Andrew S Tannenbaum )
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yeah, with a powertoy of XP named TweakUI. You can find it into Microsoft Web Site.
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hxxbin
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Robert Edward Caldecott wrote:
I love you my fine French comrade and want to have your babies.
 I'm gonna go over there [Matt runs for the door]
Matt Newman
If you chose to continue this discussion, I am fully prepared to make you my bitch. I invite you to ask around, and you'll find out that I'm quite capable of doing so - John Simmons on Trolls
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Is there a maximum number of handles that any one process can use on NT (2000/XP) before the system collapses under the strain? I am investigating what looks like a printer driver handle leak - SPOOLSV.EXE is showing ... gasp ... 19,000+ handles (via Task Manager) and that cannot be right. A customer is having the same problem but they are also seeing weird Runtime Errors displayed (from which application is anyones guess), etc.
Handles are a finite resource right?
The Rob Blog
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I love you my fine French comrade and want to have your babies. This is just what I need.
The Rob Blog
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I need a book/document/article/website that could detail (regardless of the programming language, if required for examples) how the Windows operating system exactly works internally.
Is there such a thing? I believe I cannot become a better programmer until I start understanding this: how the OS I'm coding for is actually behaving/responding to this code.
Sammy
"A good friend, is like a good book: the inside is better than the cover..."
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