What is your timeout in the vc client?  It should be a couple of minutes by default.  Move that up and see if your problem goes away.

-KjB

Same thing happening here too, "VpxClient has encountered a user-defined breakpoint".  I'm using VI client 2.5 (b84767).    For me it happens everytime though, I'm unable to download anything. Setting the timeout value did not make a difference.

Right after I select a location to save the file to and click OK, a VI client download dialog box appears and crashes immediately.

Message was edited by: ski-vt, add more info

Well, I'm having the same problem. I solved it by uninstalling and installing the VI client (not repair), but the problem keeps coming back. Has anyone found the caus of this error?

I am now getting this error in vCenter 4 when trying to upload an ISO.. creating a new folder to upload to did not work either.

It only worked when I connected directly to a host instead of vCenter.

/Martin

I have exactly this problem too.  Immediately after attempting to upload any file.  vSphere client is running on Win7 and reports version 4.0.0 build 208111.

Any help appreciated.

I have same problem before when I'm using Windows 7. I do install VI Client into Windows XP than everything going fine.  

Hi, I had this error also if a VM is attempted to be registered on a Cluster of hosts that do not have access to the LUN that the VM is on. The fix is to register the VM on a cluster that has storage visibility to the VM LUN.