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

textfield unchanged
hi,
i want my form to know whether its textbox is unchange or not.

if($textbox == 'unchang

Why does my crawler script suddenly end with no error?
Hi.

I have written a web crawler script. It will visit a large number of URL's with cURL.

add to sql result
ok see rite now my sites hit counter is counted from the mysql visitor log i need to clear it aft

How to assign JS screen.width to ASP.Net variable
I've got this ASP.net routine that gets the cookie value of the screen width, but now I need to chan

DataTable Help Required
Hi all I am creating an app that utilises and MS Access back end and queries it quite a bit at vario

Need Reporting Advice
My SQL server doesn't support MS SQL reporting services that comes with SQL Enterprise or Express. T

writing my own sobel filter convolution - something is wrong
I am trying to keep it very simple, I cant see anything wrong with my logic, could anybody help poin

SAP Management Console is blank
Dear All ,

I am facing problem in my des sever suddely in SAP Management Console is blank and

Session login issue
I'm wondering how to fix a problem I'm having with a session-based login system

Say I go to h

How do I create a 2D game "camera" to follow player?
In J2ME programming I'm targeting MIDP 2.0 devices.

I'm using gamecanvas and I was thinking t