iadstools ctor access violation

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frank brown - 14 Sep 2004 23:46 GMT

The following line of c# code:

IADsTools.DCFunctionsClass oIADsTools = new IADsTools.DCFunctionsClass();

causes a memory access violation (but the rest of the program runs,
including calls to oIADsTools member functions).

Can anyone provide a clue what I'm doing wrong? I created IADsTools.dll via
the tlbimp.exe utility.

-Frank Brown
http://www.inwa.net/~frog/

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Joe Richards [MVP] - 16 Sep 2004 13:27 GMT

I am not sure why you would see that, do you get the same when using it from VB
or perl?

Note that iadstools has some serious issues in its functions that return times,
specifically last replication and last attempted replication. It will usually be
off by at least 2*TZ Bias in hours. So if you are in GMT-5 it will be off by at
least 10 hours. If you are in GMT+1 it will be off by at least +2 hours.

--
Joe Richards Microsoft MVP Windows Server Directory Services
www.joeware.net

> The following line of c# code:
>
[quoted text clipped - 8 lines]
> -Frank Brown
> http://www.inwa.net/~frog/

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frank - 17 Sep 2004 00:16 GMT

VB is not installed on my machine so I can't test that...however I do have
perl; how would I call it from perl? The following gives me an 'invalid
class string' error:

$oIADsTools = Win32::OLE->CreateObject("IADsTools.dll");

FYI the c# app evokes the same memory error when run from Win2000/SP4 and
XP/SP2. I don't care about timestamps; I'm just using it to resolve GPO
names from their GUIDs.

-Frank

>I am not sure why you would see that, do you get the same when using it
>from VB or perl?
[quoted text clipped - 22 lines]
>> -Frank Brown
>> http://www.inwa.net/~frog/

Reply to this Message

Joe Richards [MVP] - 17 Sep 2004 00:28 GMT

Here is an example perl script of using iadstools (watch line wrap)

use OLE;

print "\niadstools-test V01.00.00pl Joe Richards (joe\@joeware.net) September
2004\n\n";

$IADSTool=CreateObject OLE ("IADsTools.DCFunctions");

$fqdn=shift;
$nc=shift;

$directpartnercount=$IADSTool->GetDirectPartners($fqdn,$nc);
if ($directpartnercount == -1)
{
print " ERROR - Couln't retrieve partners:
".$IADSTool->LastErrorText."\n";
exit;
}

for $k(1..$directpartnercount)
{
print "--\n";
print "Partner Name: ".$IADSTool->DirectPartnerName($k)."\n";
print "Last Success: ".$IADSTool->DirectPartnerLastSuccessTime($k)."\n";
print "Last Attempt: ".$IADSTool->DirectPartnerLastAttemptTime($k)."\n";
print "Failure Count: ".$IADSTool->DirectPartnerNumberFailures($k)."\n";
print "--\n";
}

You should also be able to call it from vbscript

wscript.echo
wscript.echo "iadstools-test2 V01.00.00vbs Joe Richards (joe\@joeware.net)
September 2004"
wscript.echo
wscript.echo

set IADSTool=CreateObject("IADsTools.DCFunctions")

fqdn=wscript.arguments.item(0)
nc=wscript.arguments.item(1)

directpartnercount=IADSTool.GetDirectPartners(cstr(fqdn),cstr(nc))
if (directpartnercount = -1) then
wscript.echo " ERROR - Couldn't retrieve partners: " &
IADSTool.LastErrorText() & "."
wscript.quit()
end if

for k=1 to directpartnercount
wscript.echo "--"
wscript.echo "Partner Name: " & IADSTool.DirectPartnerName(k)
wscript.echo "Last Success: " & IADSTool.DirectPartnerLastSuccessTime(k)
wscript.echo "Last Attempt: " & IADSTool.DirectPartnerLastAttemptTime(k)
wscript.echo "Failure Count: " & IADSTool.DirectPartnerNumberFailures(k)
wscript.echo "--"
next

--
Joe Richards Microsoft MVP Windows Server Directory Services
www.joeware.net

> VB is not installed on my machine so I can't test that...however I do have
> perl; how would I call it from perl? The following gives me an 'invalid
[quoted text clipped - 35 lines]
>>>-Frank Brown
>>>http://www.inwa.net/~frog/

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frank brown - 21 Sep 2004 19:19 GMT

OK it works from perl. Not sure why it generates access violation in c#. I
can recode my app from c# to perl as a workaround.

-Frank

> Here is an example perl script of using iadstools (watch line wrap)
>
[quoted text clipped - 98 lines]
> >>>-Frank Brown
> >>>http://www.inwa.net/~frog/

Reply to this Message

Joe Richards [MVP] - 22 Sep 2004 19:40 GMT

Cool

--
Joe Richards Microsoft MVP Windows Server Directory Services
www.joeware.net

> OK it works from perl. Not sure why it generates access violation in c#. I
> can recode my app from c# to perl as a workaround.
[quoted text clipped - 144 lines]
>>>>>-Frank Brown
>>>>>http://www.inwa.net/~frog/

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iadstools ctor access violation

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