Async WSAConnect failed on XP with error code = 2 ("File not found")

Posted on 16th Feb 2014 07:03 pm by admin

Hi all,

I have very strange bug, please help me if you can.

It is reproduced only on these conditions : WinXP, VS2005, VS2008, build in debug, execute without debugging.

On any other configuration or OS this code works fine.
Also works ok with old VC6.0.
I Tested it also on another XP just in case, same behavior.

I've isolated problematic code in a simple console application (no threads etc).
Just putting :
WSAEventSelect(...., FD_CONNECT | FD_READ | FD_CLOSE)
before WSAConnect, and WSAConnect will fail with error code 2 (means : File not found).
Which is not described in MSDN...also this is fail code when it really cannot connect (server is down or invalid).

If I remove WSAEventSelect (i.e. sync connect) all works.
If I debug code, all works.
If I put break point on WSAConnect line and run this app outside studio, then reach this breakpoint (start debugging) and step through WSAConnect WITH debugger it works....

I'm unable to find anything in the net about this strange behavior.
Also I'm trying to connect to FTP server, which works fine.
I'm attaching full code. It only test WSAConnect in async mode, nothing more.

10x,
Filip

Your Answer:

Login to answer

Other forums

Creating a db with a query
Hello everyone.
I'm having troubles creating a db with a query.
I'm reading a book called PHP

how to transport the Query and insfoset
Hi

I have created the query using SQ01........
How to created T-code for query..

=> and <=
So I was digging through some code when I came across the <= operator. This is the first tim

Serial number of exernal hard disk/Thumbdrive
Hi guys, I am new tio java networking concepts.Please tel me how to get Serial number of exernal

Mouseover to edit (Ajax)
hi friends, can anyone help with the code behind to get this application working, please in VB (new

Check Date/Time in PHP
What I need the code to check is that $reQuest is 24 hours in the past then return a time based on h

issues verifying if user is logged in
I am having issues when a user logs in via asp Login control, the IsAuthenticated still seems to com

Display search result
Hi!

I have a SQL database with information about albums and track (music).

This is wh

Remove values in array2 from array1
I have two arrays.

Array 1 is where the array key holds various different numbers. For exampl

Sending UDP Raw socket
I truly need help on this. I am trying to write a test program that simulate a network environment