Agnes,

Ahh I see. I didn't read the entire thread carefully.
Well, glad the problem is solved

>Herman,
>
>tanks for the tip.
>
>I've choossen to use Gregorys solution (See message#841508), it works perfeclty.
>
>Agnes
>>>Anatoliy,
>>>
>>>thanks, I will have a look at this.
>>>
>>>Agnes
>>>
>>>Update:
>>>
>>>I have checked the link, the (DELPHI) solution is most like the FCREATE() thing. The problem with FCREATE() is, that it will come up with an Message box in a Cancel/retry/ignore style where ignore makes no sense to my programm.
>>>
>>>Agnes
>>>>No help from API functions GetDriveType, GetVolumeInformation etc.
>>>>
>>>>It seems to me the only way is to write something on this drive, or change its label with SetVolumeLabel API function.
>>>>
>>>>Check this link, same subject:
>>>>http://www.experts-exchange.com/Programming/Programming_Languages/Delphi/Q_20654554.html
>>>>
>>>>Error code 19 = ERROR_WRITE_PROTECT
>>
>>Agnes,
>>
>>You need to create the file (CreateFile) with Direct Drive Access then check if it is lock using DeviceIoControl
>>
>>Here is the link. The example is in C++
>>http://support.microsoft.com/default.aspx?scid=kb;en-us;168180
>>
>>HTH