Yep.. had seen that sort of things with antivirus and antispyware software. Would be good idea to check the logs of the any such security software to see if that's the reason why the EXEs were being deleted.

>I had similar problems with Norton AntiVirus.
>
>HTH
>Gerhard
>
>>Hi everybody,
>>
>>We have a bit puzzling situation and I am wondering how can we isolate and figure out which process is doing that. We have Development, Stage and Production servers. In all 3 servers there is an exe in 3 different folders. I noticed recently that this exe was missing in all 3 folders in Development and Stage servers. I notified other developers and manually copied that exe into 3 folders in both servers.
>>
>>Today I found the exact same problem again (e.g. exe is gone again from both servers).
>>
>>How can we figure out which process is removing these exe?
>>
>>Thanks in advance.