OK, I'll send you a debug version soon.

Ive tried with the 4.1.1 beta version. The same error occurs. The error log is identical to the previous version

Cheers
Mark

Can you try that with 4.1.1 beta?

I have just reformatted my machine (Win XP Pro) & ever since, WinSCP has failed to work.

I'm using WINSCP 4.0.7 Build 370. When I attempt to connect i receive this error: "Invalid access to memory"

Here is the log:

. 2008-05-06 13:35:54.360 --------------------------------------------------------------------------
. 2008-05-06 13:35:54.360 WinSCP Version 4.0.7 (Build 370) (OS 5.1.2600 Service Pack 2)
. 2008-05-06 13:35:54.360 Login time: 06 May 2008 13:35:54
. 2008-05-06 13:35:54.360 --------------------------------------------------------------------------
. 2008-05-06 13:35:54.360 Session name: 87.113.1.112
. 2008-05-06 13:35:54.360 Host name: 87.113.1.112 (Port: 22)
. 2008-05-06 13:35:54.360 User name: (Password: No, Key file: No)
. 2008-05-06 13:35:54.360 Tunnel: No
. 2008-05-06 13:35:54.360 Transfer Protocol: SFTP (SCP)
. 2008-05-06 13:35:54.360 Ping type: -, Ping interval: 30 sec; Timeout: 15 sec
. 2008-05-06 13:35:54.360 Proxy: none
. 2008-05-06 13:35:54.360 SSH protocol version: 2; Compression: No
. 2008-05-06 13:35:54.360 Agent forwarding: No; TIS/CryptoCard: No; KI: Yes; GSSAPI: No
. 2008-05-06 13:35:54.360 Ciphers: aes,blowfish,3des,WARN,des; Ssh2DES: No
. 2008-05-06 13:35:54.360 SSH Bugs: -,-,-,-,-,-,-,-
. 2008-05-06 13:35:54.360 SFTP Bugs: -,-,-
. 2008-05-06 13:35:54.360 Return code variable: Autodetect; Lookup user groups: Yes
. 2008-05-06 13:35:54.360 Shell: default, EOL: 0
. 2008-05-06 13:35:54.360 Clear aliases: Yes, Unset nat.vars: Yes, Resolve symlinks: Yes
. 2008-05-06 13:35:54.360 Alias LS: No, Ign LS warn: Yes, Scp1 Comp: No
. 2008-05-06 13:35:54.360 Local directory: default, Remote directory: home, Update: No, Cache: Yes
. 2008-05-06 13:35:54.360 Cache directory changes: Yes, Permanent: Yes
. 2008-05-06 13:35:54.360 DST mode: 1
. 2008-05-06 13:35:54.360 --------------------------------------------------------------------------
. 2008-05-06 13:35:54.450 Looking up host "87.113.1.112"
. 2008-05-06 13:35:54.450 Connecting to 87.113.1.112 port 22
. 2008-05-06 13:35:54.520 Waiting for the server to continue with the initialisation
. 2008-05-06 13:35:54.520 Detected network event
. 2008-05-06 13:35:54.620 Detected network event
. 2008-05-06 13:35:54.620 Server version: SSH-2.0-OpenSSH_3.8.1p1
. 2008-05-06 13:35:54.620 We claim version: SSH-2.0-WinSCP_release_4.0.7
. 2008-05-06 13:35:54.620 Using SSH protocol version 2
. 2008-05-06 13:35:54.620 Waiting for the server to continue with the initialisation
. 2008-05-06 13:35:54.700 Detected network event
. 2008-05-06 13:35:54.700 Doing Diffie-Hellman group exchange
. 2008-05-06 13:35:54.700 Waiting for the server to continue with the initialisation
. 2008-05-06 13:35:55.061 Detected network event
. 2008-05-06 13:35:55.061 Doing Diffie-Hellman key exchange
. 2008-05-06 13:35:55.361 Waiting for the server to continue with the initialisation
. 2008-05-06 13:35:55.521 Detected network event
. 2008-05-06 13:35:55.742 Asking user:
. 2008-05-06 13:35:55.742 The server's host key was not found in the cache. You have no guarantee that the server is the computer you think it is.
. 2008-05-06 13:35:55.742
. 2008-05-06 13:35:55.742 The server's rsa2 key fingerprint is:
. 2008-05-06 13:35:55.742 ssh-rsa 1024 ad:53:c5:b2:4b:c2:25:30:08:4a:7f:2a:68:50:2f:0f
. 2008-05-06 13:35:55.742
. 2008-05-06 13:35:55.742 If you trust this host, press Yes. To connect without adding host key to the cache, press No. To abandon the connection press Cancel.
. 2008-05-06 13:35:55.742
. 2008-05-06 13:35:55.742 Continue connecting and add host key to the cache? ()
. 2008-05-06 13:35:55.742 Attempt to close connection due to fatal exception:
* 2008-05-06 13:35:55.742 Authentication failed.
* 2008-05-06 13:35:55.742 (EAccessViolation) EAccessViolation
. 2008-05-06 13:35:55.742 Closing connection.
* 2008-05-06 13:35:55.762 (ESshFatal) Invalid access to memory
* 2008-05-06 13:35:55.762 Authentication failed.


Some to note is that I never get the window to ask whether the rsa fingerprint is valid, even though there is no key stored in cache.

Any assistance would be greatly appreciated.
Regards

Mark Wrightson