Upload Ftp commands in C# program are blocked by Windows 7 firewall

Question

Hello everybody,
I have developped a C# application which launches a Ftp command file.
But I cannot upload the files.
When I run the Ftp command file manually, it works.
And when I disable the Windows 7 firewall for domain, the C# application works.
Here is the Ftp command file :
OPEN 100.100.100.100
user usr_essai
pwd_essai
binary
cd dir_essai
mput "C:\Essai_Ftp\*.doc"
quit
And here is the Ftp log file when I try to run the C# application :
ftp> Connecté à 100.100.100.100
OPEN 100.100.100.100
220 ESSAI1
ftp> user usr_essai
331 User usr_essai, password please
230 Password Ok, User logged in
ftp> binary
200 Type Binary
ftp> cd dir_essai
250 Change directory ok
ftp> ftp>
mput "C:\Essai_Ftp\*.doc"
200 Port command received
425 Unable to open the data connection
200 Port command received
425 Unable to open the data connection
200 Port command received
425 Unable to open the data connection
200 Port command received
425 Unable to open the data connection
ftp> ftp>
quit
221
I have tried to exclude some programs from the firewall.
I have created out going rules for excluding "ftp" and "w3wp.exe" in the firewall.
But none of these actions have made the C# application to work.
Do you have an idea ?
Thank you very much in advance.
Laurent.

Answer 1

Hi,
This issue is more related with Visual C#, you could post in that forum:
http://social.msdn.microsoft.com/Forums/vstudio/en-US/home?forum=csharpgeneral
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