>>Hi Danijel,
>>
>> It seems to me that you ON ERROR routine is causing the problem when error 'Invalid Connection Handle' occurs.
>> Give this a try.
>>Bye
>>Jayesh
>>
>>
>
>Like I said, I tried it in command window, and samme happened. Besides, my error handlig doesn't always quits, certainly not where the problem occured, I checked that too.

Ok then, Put one ON ERROR routine and see if control goes into it or not.