Windows service problem with FTPWebRequest

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Frederik Wehlin - 29 Mar 2006 16:49 GMT

I've created an application that upload files to a ftp-server. Everything
works like a charm when doing this from a windows form. But when I try the
exact same thing from a Windows service I get an exception when calling the
GetRequestStream on the FTPWebRequest object i.e when trying to open the
stream to the ftp.

the errormessage i get is: The remote server returned an error: (550) File
unavailable (e.g., file not found, no access).

I assume this has something to do with securtiy and access. I've tried to
install the service under a admin user account as well as local system, but
neither work.

Can anyone lead me in the right direction to solve this issue?

Regards Frederik

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Cowboy (Gregory A. Beamer) - MVP - 29 Mar 2006 17:44 GMT

There are two potential security gotchas here:

1. The account for windows forms has access to the FTP server and the
service does not (use a domain account to run the service ... that has the
same types of rights to the FTP server as yours is the solution).

2. Access security on the box. IE, the service is not given rights to use
the services necessary to do what you desire. This is less likely, as you
have set it up under local admin.

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Gregory A. Beamer
MVP; MCP: +I, SE, SD, DBA

***************************
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> I've created an application that upload files to a ftp-server. Everything
> works like a charm when doing this from a windows form. But when I try the
[quoted text clipped - 12 lines]
>
> Regards Frederik

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Frederik Wehlin - 30 Mar 2006 08:37 GMT

Thanx for your reply.

1. My local network is a workgroup and not a domain, and I've already tried
to installed the service with the same user account as when running the
windows form application.

2. How can change the rights for the service based on 2:nd gotcha?

> There are two potential security gotchas here:
>
[quoted text clipped - 22 lines]
> >
> > Regards Frederik

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Windows service problem with FTPWebRequest

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