On Windows Vista, Process.Start() generates Win32Exception.

[Atara]

On Windows Vista, Process.Start() generates Win32Exception.

Sample Code:

Dim selfProc As String = System.Windows. Forms.Applicati on.ExecutablePa th
System.Diagnost ics.Process.Sta rt(Chr(34) & selfProc & Chr(34))
The generated Exception:

System.Componen tModel.Win32Exc eption: The parameter is incorrect
at System.Diagnost ics.Process.Sta rtWithShellExec uteEx(ProcessSt artInfo
startInfo))
at System.Diagnost ics.Process.Sta rt()
at System.Diagnost ics.Process.Sta rt(ProcessStart Info startInfo)
at System.Diagnost ics.Process.Sta rt(String fileName)
at ...MyProcedure( ...)
What is wrong with my code?

Thanks
Atara

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[Patrice]

Are you sure you need quotes ? (executable and arguments are provided
separately unlike when typing in the console).

"Atara" <At***@DD.com a écrit dans le message de news:
uN************* *@TK2MSFTNGP03. phx.gbl...

On Windows Vista, Process.Start() generates Win32Exception.

Sample Code:

Dim selfProc As String = System.Windows. Forms.Applicati on.ExecutablePa th
System.Diagnost ics.Process.Sta rt(Chr(34) & selfProc & Chr(34))
The generated Exception:

System.Componen tModel.Win32Exc eption: The parameter is incorrect
at System.Diagnost ics.Process.Sta rtWithShellExec uteEx(ProcessSt artInfo
startInfo))
at System.Diagnost ics.Process.Sta rt()
at System.Diagnost ics.Process.Sta rt(ProcessStart Info startInfo)
at System.Diagnost ics.Process.Sta rt(String fileName)
at ...MyProcedure( ...)
What is wrong with my code?

Thanks
Atara

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[Atara]

I had the same error , when not having the chr(34), so I added it.

Do you think that this might cause the problem?

while googling, I found Microsoft Process Monitor , I will try to use it
during this week.

Do you think I need to set
Process.StartIn fo.UseShellExec ute = False
???

Thanks

Atara
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[Patrice]

Would say a problem with the target file. Do you have the same problem when
try to launch some other EXE file such as calc.exe ?

What kindf of file are you trying to launch ? For executable and unless you
want to use redirection it shouldn't make any difference.

Finally it could be perhaps something with Vista new security featrures (UAC
or hgher privileged directory ?)

For now I would make a test with calc.exe to see if it works for something
simple...

Good luck.

"Atara" <At***@DD.com a écrit dans le message de news:
%2************* ***@TK2MSFTNGP0 3.phx.gbl...

>
I had the same error , when not having the chr(34), so I added it.

Do you think that this might cause the problem?

while googling, I found Microsoft Process Monitor , I will try to use it
during this week.

Do you think I need to set
Process.StartIn fo.UseShellExec ute = False
???

Thanks

Atara
*** Sent via Developersdex http://www.developersdex.com ***

[Atara]

sorry I did not answer before, busy with other projects.
I hope to update this thread when I have new info

Thank you all.

Atara.
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[Atara]

I started investigating the problem...

I get the same error in two cases:
1. When I try to re-execute my application.
2. When I try to open an html file in the default browser.

regardind the 2nd case, I added
Catch ex1 As System.Componen tModel.Win32Exc eption

and I get
ex1.ErrorCode() .ToString =[-2147467259]
ex1.NativeError Code().ToString =[87]

according to [url:http://support.microso ft.com/kb/305703]
... if you use this approach on a computer that does not have a
browser installed, an exception occurs. ...

so my question now is:
How to start the default Internet browser on Vista ?

Atara
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