I posted this question, but I pressed 'post' and it disappeared. So
once again:

Problem:
I need to go to lets say www.site.com/page.html

Imagine that this html code is 6 mb long.

I need to extract information between bytes 5000 and 5020.

So, obviously problem is, that I do not want to download the whole 6
mb file to extract only 20 bytes.

I will need to do this maybe thousands times a day and I can't afford
to create such traffic.

Is there a way to extract from remote file using exact position?

Something which would simulate steps:

- go to www.site.com/page.html
- open file for reading
- jump to byte x
- read y number of bytes
- retrieve result
- close file

Is there any way of doing this?

Please help me.

Vjay

On 12 Apr 2004 18:31:23 -0500, Vjay77 wrote:

> I posted this question, but I pressed 'post' and it disappeared. So
> once again:
>
> Problem:
> I need to go to lets say www.site.com/page.html
>
> Imagine that this html code is 6 mb long.
>
> I need to extract information between bytes 5000 and 5020.
>
> So, obviously problem is, that I do not want to download the whole 6
> mb file to extract only 20 bytes.
>
> I will need to do this maybe thousands times a day and I can't afford
> to create such traffic.
>
> Is there a way to extract from remote file using exact position?
>
> Something which would simulate steps:
>
> - go to www.site.com/page.html
> - open file for reading
> - jump to byte x
> - read y number of bytes
> - retrieve result
> - close file
>
> Is there any way of doing this?
>
> Please help me.
>
> Vjay

Is this file actually on a web server?

On Mon, 12 Apr 2004 22:07:36 -0400, Jim Hubbard wrote:

> On 12 Apr 2004 18:31:23 -0500, Vjay77 wrote:
>
>> I posted this question, but I pressed 'post' and it disappeared. So
>> once again:
>>
>> Problem:
>> I need to go to lets say www.site.com/page.html
>>
>> Imagine that this html code is 6 mb long.
>>
>> I need to extract information between bytes 5000 and 5020.
>>
>> So, obviously problem is, that I do not want to download the whole 6
>> mb file to extract only 20 bytes.
>>
>> I will need to do this maybe thousands times a day and I can't afford
>> to create such traffic.
>>
>> Is there a way to extract from remote file using exact position?
>>
>> Something which would simulate steps:
>>
>> - go to www.site.com/page.html
>> - open file for reading
>> - jump to byte x
>> - read y number of bytes
>> - retrieve result
>> - close file
>>
>> Is there any way of doing this?
>>
>> Please help me.
>>
>> Vjay
>
> Is this file actually on a web server?

If so, look into HTTP resuming - IF the web server supports it. There is
vb6 source code that shows how to do this at
http://www.planetsourcecode.com/vb/s...10926&lngWId=1
..

Yes I ment remote file at webserver.
I need to know how to do this in .net.
You pointed me to vb 6.0, and to whole application.
Please does anyone know how to do this.
I mean is there a way to do this in .net?