Has anybody seen an 'Access denied' error when trying to create a mutex? If
so - what does that mean? I though Mutex's were not supposed to error out.
TIA - Jeff.
7  7064 
Hello, UJ!
U> Has anybody seen an 'Access denied' error when trying to create a mutex?
U> If so - what does that mean? I though Mutex's were not supposed to error
U> out.
AFAIK to create mutex, your code has to have SecurityPermiss ionFlag.Unmanag edCode flag.
Also if you're "creating" mutex that already exists you can have no access to it, if its creator had set appropriate ACLs
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com
The thing that is weird is it happens only occasionally. If we restart the
program, it will work.
"Vadym Stetsyak" <va*****@ukr.ne t> wrote in message
news:eV******** ******@TK2MSFTN GP02.phx.gbl... Hello, UJ!
U> Has anybody seen an 'Access denied' error when trying to create a
mutex?
U> If so - what does that mean? I though Mutex's were not supposed to
error
U> out.
AFAIK to create mutex, your code has to have
SecurityPermiss ionFlag.Unmanag edCode flag.
Also if you're "creating" mutex that already exists you can have no access
to it, if its creator had set appropriate ACLs
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com
Hello, UJ!
Interesting, give us more context for the problem: what is creating mutex, how it is used, are there any security related operations in the application etc.?
--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com
It's in stand alone programs. I've got multiple programs trying to write to
a log file so I mutex around the writes. That seems to be where the problem
lies.
I haven't done anything with security so it should be OK.
"Michael Nemtsev" <ne*****@msn.co m> wrote in message
news:97******** *************** ***********@mic rosoft.com... I recomend look at these threads
http://groups.google.com/group/micro...a3b2ea6976b16d
http://groups.google.com/group/micro...1e34df50df665f
BTW, Did u create windows service and use mutex there?
The thing that is weird is it happens only occasionally. If we restart
the
program, it will work.
--
WBR,
Michael Nemtsev :: blog: http://spaces.msn.com/laflour
"At times one remains faithful to a cause only because its opponents do
not
cease to be insipid." (c) Friedrich Nietzsche
Make sure all you program run in the same logon session as the owner of the
mutex, that is, make sure no-one impersonates when accessing the mutex.
Willy.
"UJ" <fr**@nowhere.c om> wrote in message
news:eu******** ******@TK2MSFTN GP03.phx.gbl...
| It's in stand alone programs. I've got multiple programs trying to write
to
| a log file so I mutex around the writes. That seems to be where the
problem
| lies.
|
| I haven't done anything with security so it should be OK.
|
| "Michael Nemtsev" <ne*****@msn.co m> wrote in message
| news:97******** *************** ***********@mic rosoft.com...
| >I recomend look at these threads
| > http://groups.google.com/group/micro...a3b2ea6976b16d
| >
| > http://groups.google.com/group/micro...1e34df50df665f
| >
| > BTW, Did u create windows service and use mutex there?
| >
| >>> The thing that is weird is it happens only occasionally. If we restart
| >>> the
| >>> program, it will work.
| >
| > --
| > WBR,
| > Michael Nemtsev :: blog: http://spaces.msn.com/laflour
| >
| > "At times one remains faithful to a cause only because its opponents do
| > not
| > cease to be insipid." (c) Friedrich Nietzsche
| >
| >
|
|
I originally had all the programs in the startup group. I now have a program
that launches each of the programs in order. I'm doing nothing with security
so I have to assume that I'm the same user for each program.
"Willy Denoyette [MVP]" <wi************ *@telenet.be> wrote in message
news:ea******** ******@TK2MSFTN GP03.phx.gbl... Make sure all you program run in the same logon session as the owner of
the
mutex, that is, make sure no-one impersonates when accessing the mutex.
Willy.
"UJ" <fr**@nowhere.c om> wrote in message
news:eu******** ******@TK2MSFTN GP03.phx.gbl...
| It's in stand alone programs. I've got multiple programs trying to write
to
| a log file so I mutex around the writes. That seems to be where the
problem
| lies.
|
| I haven't done anything with security so it should be OK.
|
| "Michael Nemtsev" <ne*****@msn.co m> wrote in message
| news:97******** *************** ***********@mic rosoft.com...
| >I recomend look at these threads
| >
http://groups.google.com/group/micro...a3b2ea6976b16d
| >
| >
http://groups.google.com/group/micro...1e34df50df665f
| >
| > BTW, Did u create windows service and use mutex there?
| >
| >>> The thing that is weird is it happens only occasionally. If we
restart
| >>> the
| >>> program, it will work.
| >
| > --
| > WBR,
| > Michael Nemtsev :: blog: http://spaces.msn.com/laflour
| >
| > "At times one remains faithful to a cause only because its opponents
do
| > not
| > cease to be insipid." (c) Friedrich Nietzsche
| >
| >
|
|
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