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Kernel32 CreateProcess problem9s)

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From: address@is.invalid (R.Wieser)
Newsgroups: comp.os.ms-windows.programmer.win32
Subject: Kernel32 CreateProcess problem9s)
Date: Wed, 10 Apr 2024 10:08:11 +0200
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by: R.Wieser - Wed, 10 Apr 2024 08:08 UTC

Hello all,

On XPsp3:

I'm trying to use Kernel32's "CreateProcess" to run executable stuff, and
have a problem : I'm only providing the commandline (lpApplicationName is
NULL), and although it works well enough for an executable (and a .BAT file,
rather unexpected), it balks when I supply it a .VBS file.

OK, that is to be expected, as a .VBS file isn't an application (but why
than is a .BAT file accepted? The application for it is CMD.EXE).

So, I use Kernel32's "FindExecutable" to find the application. And that
works. For the above .VBS file "wscript.exe" is returned (with its full
path).

.... one problem though : In the registry I've added some of the "//xxx"
arguments, and those do not come back with it. Nor is the "ScriptEngine"
keys value returned (to indicate either a .VBS or .JS script)

And not including such information in my CreateProcess call creates
problems. :-(

Question:
What DLL methods are available to retrieve such information ?

Regards,
Rudy Wieser

Re: Kernel32 CreateProcess problem9s)

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Subject: Re: Kernel32 CreateProcess problem9s)
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by: JJ - Wed, 10 Apr 2024 18:32 UTC

On Wed, 10 Apr 2024 10:08:11 +0200, R.Wieser wrote:
> Hello all,
>
> On XPsp3:
>
> I'm trying to use Kernel32's "CreateProcess" to run executable stuff, and
> have a problem : I'm only providing the commandline (lpApplicationName is
> NULL), and although it works well enough for an executable (and a .BAT file,
> rather unexpected), it balks when I supply it a .VBS file.

Because the kernel uses the `PATHEXT` environment variable. Similar to how
it uses the `PATH` and other environment variables.

Re: Kernel32 CreateProcess problem9s)

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Subject: Re: Kernel32 CreateProcess problem9s)
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by: R.Wieser - Thu, 11 Apr 2024 07:54 UTC

JJ,

>> ... it works well enough for an executable ..., it balks when
>> I supply it a .VBS file.

> Because the kernel uses the `PATHEXT` environment variable. Similar
> to how it uses the `PATH` and other environment variables.

I'm afraid you'll need to explain that to me.

On my 'puter .VBS is definitily included in there.

And yes, I too thought that anything in there would be recognised and
executed. It turns out I was wrong. :-\

Regards,
Rudy Wieser

Subject	Author
Kernel32 CreateProcess problem9s)	R.Wieser
Re: Kernel32 CreateProcess problem9s)	JJ
Re: Kernel32 CreateProcess problem9s)	R.Wieser