my.computer.network.upload proxy problems

[Jerry Spence1]

In VB2005 (.NET 2.0) when I do:

my.computer.network.uploadfile

I get the error "The requested FTP command is not supported when using an
HTTP Proxy"

Is there any way round this? Does this command work in .NET 3.0?

-Jerry

[Alex Clark]

Hi Jerry,

I had similar issues in one of my apps. My ISP has a sort of transparent
proxy to compress data, but it doesn't work over https and my app was trying
to download via this protocol. All sorts of weird and wonderful errors
started cropping up.

The short story? Don't use My.Computer.Network.Upload/Download for anything
unless you know 100% that your users have a very stable, reliable, typical
internet configuration.

I ended up using HttpWebRequest with Try/Catch blocks to see if it worked
with the default proxy config, and if not then to fall back to using it
without any proxy. It was the only way I could get it to work.

Hope that helps,
Alex
"Jerry Spence1" <12*@dfgh.comwrote in message
news:s7*********************@posted.plusnet...

In VB2005 (.NET 2.0) when I do:

my.computer.network.uploadfile

I get the error "The requested FTP command is not supported when using an
HTTP Proxy"

Is there any way round this? Does this command work in .NET 3.0?

-Jerry

[Jerry Spence1]

Thanks for that Alex. It seems strange that Microsoft should produce such a
useful command when it has such limitations. All the FTP implementations I
have tried seem to be very fragile at one site or another. Did your
HttpWebRequest work?

By the way, how do you find out what your proxy server is?

-Jerry

"Alex Clark" <qu****@noemail.noemailwrote in message
news:O7****************@TK2MSFTNGP05.phx.gbl...

Hi Jerry,

I had similar issues in one of my apps. My ISP has a sort of transparent
proxy to compress data, but it doesn't work over https and my app was
trying to download via this protocol. All sorts of weird and wonderful
errors started cropping up.

The short story? Don't use My.Computer.Network.Upload/Download for
anything unless you know 100% that your users have a very stable,
reliable, typical internet configuration.

I ended up using HttpWebRequest with Try/Catch blocks to see if it worked
with the default proxy config, and if not then to fall back to using it
without any proxy. It was the only way I could get it to work.

Hope that helps,
Alex
"Jerry Spence1" <12*@dfgh.comwrote in message
news:s7*********************@posted.plusnet...

>In VB2005 (.NET 2.0) when I do:

my.computer.network.uploadfile

I get the error "The requested FTP command is not supported when using an
HTTP Proxy"

Is there any way round this? Does this command work in .NET 3.0?

-Jerry