Thanks, it’s now working. The registry folder must be entirely empty in
order to delete it.
Regards
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Doron Holan
Sent: Monday, September 29, 2003 4:23 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] RE: ZwDeleteKey
I think so, try deleting the values and see. I know ZwDeleteKey does
not recursively delete, I can’t remember if the key must be entirely
empty.
As side note, in your error path, you are closing a handle value which
you did not successfully open
status = ZwOpenKey(&ParamHandle,KEY_ALL_ACCESS,&m_attributes);
// This key is always opened
if(!NT_SUCCESS(status)) {
KdPrint ((“ZwOpenKey failed with Status=%x\n”, status));
ZwClose(ParamHandle); <== this should be removed
return status;
}
D
This posting is provided “AS IS” with no warranties, and confers no
rights
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Christian Grenier
Sent: Monday, September 29, 2003 12:59 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] RE: ZwDeleteKey
I verified and I don’t have any subkeys. The keys has only 3 parameters
like that :
keyX\YY\Param 1 = Value 1
keyX\YY\Param 2 = Value 2
keyX\YY\Param 3 = Value 3
Do I have to delete each parameter before to delete the key YY?
C
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Doron Holan
Sent: Monday, September 29, 2003 2:41 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] RE: ZwDeleteKey
Are there any subkeys under the key you are deleting? If so, you must
delete each subkey first, starting with the leaf keys and working your
way up.
D
This posting is provided “AS IS” with no warranties, and confers no
rights
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Christian Grenier
Sent: Monday, September 29, 2003 11:04 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] ZwDeleteKey
I want to delete a key from registry and the status is 0xC0000121
(CANNOT_DELETE).
(\Registry\Machine\System\CurrentControlSet\Services\YY\XX)
How can I delete a key with ZwDeleteKey.
Here is my code :
RtlInitUnicodeString(&ustrname,
L"\Registry\Machine\System\CurrentControlSet\Services\YY\XX");
InitializeObjectAttributes(&m_attributes,&ustrname,OBJ_CASE_INSENSITIVE,
NULL,NULL);
status = ZwOpenKey(&ParamHandle,KEY_ALL_ACCESS,&m_attributes);
// This key is always opened
if(!NT_SUCCESS(status)) {
KdPrint ((“ZwOpenKey failed with Status=%x\n”, status));
ZwClose(ParamHandle);
return status;
}
status = ZwDeleteKey(ParamHandle);
if(!NT_SUCCESS(status)) {
KdPrint ((“ZwDeleteKey failed with Status=%x\n”, status));
}
ZwClose(ParamHandle);
Best regards
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
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