attaching to a drive

hi experts,

i am new to fs filters. i took the simplest example in IFS kit called
sfilter. I compiled it and installed the sys on a win2k sp4 machine which
has one driver formatted as NTFS.

after rebooting, i used devtree util of osr to check which all drives the
filter attached.

it is not attaching to ntfs in win2k at all. however, the same sys file
works fine on winxp and win2k3 based machines with ntfs.

what is the problem?

AP

This is a quote from the IFSDK:
" In Microsoft Windows XP and later, when a file system filter driver calls IoRegisterFsRegistrationChange, its notification routine is also called immediately for all currently registered file systems (that is, file systems that have already called IoRegisterFileSystem but have not yet called IoUnregisterFileSystem). "

“A P” wrote in message news:xxxxx@ntfsd…
hi experts,

i am new to fs filters. i took the simplest example in IFS kit called sfilter. I compiled it and installed the sys on a win2k sp4 machine which has one driver formatted as NTFS.

after rebooting, i used devtree util of osr to check which all drives the filter attached.

it is not attaching to ntfs in win2k at all. however, the same sys file works fine on winxp and win2k3 based machines with ntfs.

what is the problem?

AP

yes, i read it, but how can i solve this problem. these sentences didn’t
make much sense to me at this point.

Any help will be appreciated.

Windows 2000 the notification routine not called for currently registered
file systems.

“A P” wrote in message news:xxxxx@ntfsd…
yes, i read it, but how can i solve this problem. these sentences didn’t
make much sense to me at this point.

Any help will be appreciated.

lyndon,

i nderstand that, but then how do I attach it to NTFS?

Make it boot start in the registry and reboot.

A P wrote:

lyndon,

i nderstand that, but then how do I attach it to NTFS?
— Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17 You are currently
subscribed to ntfsd as: unknown lmsubst tag argument: ‘’ To
unsubscribe send a blank email to xxxxx@lists.osr.com

hi matt,

godd to see your post again.

If I remember correctly, sfilter is already configured to boot start. The
problem nees to be addressed in a different way. why not try manually
attaching with the different FS types?

amitr0

matt,

afilter is already set to bootstart

Right, I was thinking of how IoRegisterFsRegistrationChange differs
between w2k and xp and above.

"In Microsoft® Windows® XP and later, when a file system filter driver
calls *IoRegisterFsRegistrationChange*, its notification routine is also
called immediately for all currently registered file systems "

I was thinking this was the problem of why it wasn’t attaching in W2k,
but both of you are correct. I just pulled out the inf file that comes
with the sample and indeed it is a starttype =0 so therefor, it should
attach…

???

Matt

amitr0 wrote:

hi matt,

godd to see your post again.

If I remember correctly, sfilter is already configured to boot start.
The problem nees to be addressed in a different way. why not try
manually attaching with the different FS types?

amitr0
— Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17 You are currently
subscribed to ntfsd as: unknown lmsubst tag argument: ‘’ To
unsubscribe send a blank email to xxxxx@lists.osr.com

i faced the same problem a few days back…never had a chance to debug it
though…

can someone quench our curiosity thirst???

We attach our filter driver on demand and it works fine across W2K and W2k3 ( attach methods are same).

MM wrote:
Right, I was thinking of how IoRegisterFsRegistrationChange differs
between w2k and xp and above.

"In Microsoft® Windows® XP and later, when a file system filter driver
calls IoRegisterFsRegistrationChange, its notification routine is also
called immediately for all currently registered file systems "

I was thinking this was the problem of why it wasn’t attaching in W2k,
but both of you are correct. I just pulled out the inf file that comes
with the sample and indeed it is a starttype =0 so therefor, it should
attach…

???

Matt

amitr0 wrote:

> hi matt,
>
> godd to see your post again.
>
>
> If I remember correctly, sfilter is already configured to boot start.
> The problem nees to be addressed in a different way. why not try
> manually attaching with the different FS types?
>
> amitr0
> — Questions? First check the IFS FAQ at
> https://www.osronline.com/article.cfm?id=17 You are currently
> subscribed to ntfsd as: unknown lmsubst tag argument: ‘’ To
> unsubscribe send a blank email to xxxxx@lists.osr.com


Questions? First check the IFS FAQ at https://www.osronline.com/article.cfm?id=17

You are currently subscribed to ntfsd as: xxxxx@yahoo.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

---------------------------------
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Use Photomail to share photos without annoying attachments.

Register your SFILTER derivative as:

Type=1
Start=0 (boot)
ErrorControl=0
Group=filter

Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com

----- Original Message -----
From: “A P”
To: “Windows File Systems Devs Interest List”
Sent: Friday, March 17, 2006 12:32 PM
Subject: [ntfsd] attaching to a drive

hi experts,

i am new to fs filters. i took the simplest example in IFS kit called
sfilter. I compiled it and installed the sys on a win2k sp4 machine which
has one driver formatted as NTFS.

after rebooting, i used devtree util of osr to check which all drives the
filter attached.

it is not attaching to ntfs in win2k at all. however, the same sys file
works fine on winxp and win2k3 based machines with ntfs.

what is the problem?

AP


Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17

You are currently subscribed to ntfsd as: unknown lmsubst tag argument: ‘’
To unsubscribe send a blank email to xxxxx@lists.osr.com

Yes, so, loading early (Start=0, Group=filter) is the only chance.

Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com

----- Original Message -----
From: “Lyndon J. Clarke”
Newsgroups: ntfsd
To: “Windows File Systems Devs Interest List”
Sent: Friday, March 17, 2006 2:16 PM
Subject: Re:[ntfsd] attaching to a drive

> Windows 2000 the notification routine not called for currently registered
> file systems.
>
> “A P” wrote in message news:xxxxx@ntfsd…
> yes, i read it, but how can i solve this problem. these sentences didn’t
> make much sense to me at this point.
>
> Any help will be appreciated.
>
>
>
> —
> Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
>
> You are currently subscribed to ntfsd as: xxxxx@storagecraft.com
> To unsubscribe send a blank email to xxxxx@lists.osr.com