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

FFmpeg Images 2 Video conversion problem ??
I got folder full of images , number of images = 600 , I want to make a video which plays one image

How to add functionality to a simple php calender?
Hello everyone,

I have just finished creating a simple php calander. Can someone point

writing a screen scraper
Hello,

I'm writing a screen scraper application and want to be able to get absolute addresses

Code error with Index.php
Error: Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in /home/runevid/public_

Rss feed question
Hi

My blog and my website are different. Am i able to take my rss feed
from my blog and p

change text color with a jQuery code
Hihow can I change the text in a asp:TextBox to a different color when I start typing using jQuery?I

How to display value in drop down list after form has been reloaded
Please bear with me as I am very new to php and html.

I have a form with several drop down me

Why do I get this error?
Error:

Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or

foreach iterator
Hi Guys
Does the foreach loop have an inbuilt iterator ?

Show message after entering data
Hello Colleagues

I would like to display messages after entering the data example: "
dat