Vista - GetShortPathName issue

Windows XP Pro SP 2 on Virtual PC 2007 (6.0.192)

I am seeing a problem with GetShortPathName API in a VM where it is not
returning the correct short path name. It seems to quit applying the short
path after the first directory.
For eg.
I am doing GetShortPathName on C:\Program Files\Microsoft.NET\Primary
Interop Assemblies

I get
C:\PROGRA~1\Microsoft.NET\Primary Interop Assemblies on Virtual PC
and
C:\PROGRA~1\MICROS~1.NET\PRIMAR~1 on the host OS (Vista)

Is there something i am missing?

TIA
Priyesh

I'm not sure why but I think you are on to something.

I looked at a "dir /x" on a virtual pc 2007 sp1 machine and directories that
have long file names have a blank short name.

Here is an example output where .net 2.0 framework and sql server 2005
express was installed within VPC 2007 SP1:

Volume in drive C has no label.
Volume Serial Number is 8C31-AA1D

Directory of C:\PROGRA~1

07/29/2008 04:35 PM <DIR> .
07/29/2008 04:35 PM <DIR> ..
07/29/2008 04:27 PM <DIR> COMMON~1 Common Files
09/24/2007 05:16 PM <DIR> COMPLU~1 ComPlus Applications
07/29/2008 04:24 PM <DIR> INTERN~1 Internet Explorer
09/24/2007 05:16 PM <DIR> MICROS~1 microsoft frontpage
07/29/2008 04:32 PM <DIR> Microsoft SQL Server
07/29/2008 04:30 PM <DIR> Microsoft.NET
09/24/2007 05:16 PM <DIR> MOVIEM~1 Movie Maker
09/24/2007 05:16 PM <DIR> MSNGAM~1 MSN Gaming Zone
09/24/2007 05:16 PM <DIR> NETMEE~1 NetMeeting
09/24/2007 05:16 PM <DIR> ONLINE~1 Online Services
09/24/2007 05:16 PM <DIR> OUTLOO~1 Outlook Express
11/27/2007 12:28 AM <DIR> Virtual Machine Additions
11/27/2007 01:08 AM <DIR> 857896~1.TMP Windows Media Connect
09/24/2007 05:30 PM <DIR> WINDOW~2 Windows Media Player
09/24/2007 05:17 PM <DIR> WINDOW~1 Windows NT
09/24/2007 05:17 PM <DIR> xerox
0 File(s) 0 bytes
19 Dir(s) 14,074,114,048 bytes free





"PGP" wrote:

My host XP machine does exactly the same, it must be some difference
in XP itself.

--
Bob Comer


On Fri, 1 Aug 2008 13:53:25 -0700, Dave Williamson
<DaveWilliamson@xxxxxx> wrote:

And just to follow up.

I did the dir /x on the host machine that the VPC is on and it reports the
shortnames as expected. The host machine however has been updated to XP SP3.



"Robert Comer" wrote:

I came across this issue as part of debugging a "server does not start in
vm" problem. I found out that the server program takes certain commandline
arguments and would only take short paths. So the program that actually
makes those command line arguments has code to create short path names.

Now i know for a fact that the same installation works correctly in XP and
Vista machines. And all those installations go to the C:\Program
Files\<company name>\<product name with spaces>system\data\.

I dont think it has something to do with XP. I ran the dir /X on an XP
machine and get this.

01/25/2008 04:06 AM <DIR> INTERN~1 Internet Explorer
04/01/2008 10:24 AM <DIR> Java
05/14/2007 09:06 AM <DIR> MESSEN~1 Messenger
05/21/2007 10:53 AM <DIR> METROW~1 Metrowerks
05/17/2007 05:01 PM <DIR> MIED60~1 Microsoft ACT
06/12/2007 02:12 PM <DIR> MI3AA1~1 Microsoft ActiveSync

This seems to work as expected for long file names without spaces.

Priyesh

"Robert Comer" <bobcomer-removeme-@xxxxxx> wrote in message
news:g3v694l2ohu8q3k811ln9s6v5fpm8hcgn1@xxxxxx

Mine's SP3 as well.

--
Bob Comer


On Fri, 1 Aug 2008 14:41:10 -0700, Dave Williamson
<DaveWilliamson@xxxxxx> wrote:

I'm seeing something very weird with my machine, so maybe there's
something wrong with it specifically, but I don't see how only being
in a VM could possibly cause this unless it has something to do with
the additions, and even then, I don't think there's anything there
that would do that. The VM doesn't have anything to do with the file
system, it's all up to the OS running in the VM.

--
Bob Comer


On Fri, 1 Aug 2008 15:43:32 -0600, "PGP" <priyesh@xxxxxx_not_reply> wrote:

Robert,

Good point there about the additions. I am not sure if anything they do will
cause this issue, but i would like to test this on a VM without additions.

Priyesh

"Robert Comer" <bobcomer-removeme-@xxxxxx> wrote in message
news:8na794h7737b0hugn62vs2pc47pe9uv33t@xxxxxx

Robert,
It seems that the additions might have something to do with this. I tested
this in a VM without additions and it works as expected.
Wonder what's going on here.

Regards
Priyesh

"PGP" <priyesh@xxxxxx_not_reply> wrote in message
news:OGfRo5O9IHA.5404@xxxxxx

Interesting, I'll pass it along and see what comes up...

--
Bob Comer



On Mon, 4 Aug 2008 09:04:56 -0600, "PGP" <priyesh@xxxxxx_not_reply> wrote: