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

From:

"Igor Tandetnik" <itandetnik@mvps.org>

Newsgroups:

microsoft.public.vc.atl

Date:

Wed, 4 Apr 2007 10:59:28 -0400

Message-ID:

<uHYAZnsdHHA.5080@TK2MSFTNGP05.phx.gbl>

John <John@discussions.microsoft.com> wrote:

My requirement: I want to use TestDll.dll(ATL COM DLL, Threading
Model - Apartment, Interface - Dual and Aggregation - Yes) in ASPX
pages.

I created type library for TestDll.dll (ATL COM DLL) using tlbimp
from VS2005 command prompt. Output is TESTDLLLib.lib(.NET Assembly).
It has only one function which is CreateFileInCDrive(). It just
creates one text file in C
Drive.

I created asp.net website project and selected code behind as visual
c#. I would like to use atl com dll (TestDll.dll) in Page_Load event.
Is it possible?

Yes.

In Visual C#, (i mean page_load function) I am able to create object.
But, I cannot create the TestDll.txt file.

Most likely, the account under which your code is running doesn't have
sufficient rights to create files in the root of the drive on your
server. ASPX is locked down pretty tightly in default configuration.
--
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