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From: Jeff McKay on 26 Mar 2010 00:31
I have an application that consists of two programs running on the same
machine. One is a mailslot
server, the other a client. The client sends messages to the server by
calling CreateFile to open the
slot, then WriteFile to send the data. This all works fine on most
machines. Now I test it on a Vista
laptop, and it does not work. WriteFile returns error 64
(ERROR_NETNAME_DELETED,
The specified network name is no longer available). I don't understand
this at all - there is no network
involved, both programs are on the same machine. Any ideas?

From: Leo Davidson on 26 Mar 2010 02:52
On Mar 26, 4:31 am, "Jeff McKay" <jeff.mc...(a)comaxis.com> wrote:

> Now I test it on a Vista laptop, and it does not work.

If you run the client program elevated (right-click, Run as
Administrator), does it work then?
From: Jeff McKay on 26 Mar 2010 13:42
No, that didn't work. I had been running the client manually from a DOS
window that had been run as
Administrator, but I tried setting up a shortcut for it, running as Admin
(Vista prompts me for permission) but
the WriteFile still fails.

"Leo Davidson" <leonudeldavidson(a)googlemail.com> wrote in message
news:f9156106-17b4-445b-ba63-c1ffe725d65b(a)z11g2000yqz.googlegroups.com...
On Mar 26, 4:31 am, "Jeff McKay" <jeff.mc...(a)comaxis.com> wrote:

> Now I test it on a Vista laptop, and it does not work.

If you run the client program elevated (right-click, Run as
Administrator), does it work then?

From: Hector Santos on 26 Mar 2010 22:35

Sounds like its network related. MailSlots uses NETBIOS names and if
you don't have it bound to the NIC for NETBIOS over TCP/IP operations
then this error can occur. Check to see if VISTA has it off.

--
HLS

Jeff McKay wrote:

> No, that didn't work. I had been running the client manually from a DOS
> window that had been run as
> Administrator, but I tried setting up a shortcut for it, running as
> Admin (Vista prompts me for permission) but
> the WriteFile still fails.
>
> "Leo Davidson" <leonudeldavidson(a)googlemail.com> wrote in message
> news:f9156106-17b4-445b-ba63-c1ffe725d65b(a)z11g2000yqz.googlegroups.com...
> On Mar 26, 4:31 am, "Jeff McKay" <jeff.mc...(a)comaxis.com> wrote:
>
>> Now I test it on a Vista laptop, and it does not work.
>
> If you run the client program elevated (right-click, Run as
> Administrator), does it work then?

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