[pywin32-bugs] [ pywin32-Bugs-3156202 ] windows script host behaviour changes after pywin32 install

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Bugs item #3156202, was opened at 2011-01-12 02:48
Message generated for change (Comment added) made by cjgohlke
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Cyrille Bollu (cyrillebollu)
Assigned to: Nobody/Anonymous (nobody)
Summary: windows script host behaviour changes after pywin32 install

Initial Comment:
Hi,

This problem has been reported on http://pythonforum.org/topic62-pywin32-and-windows-script-host-problem.html.

I'm experiencing the same problem.

The bug is reproductible (validated with http://surfnet.dl.sourceforge.net/sourceforge/pywin32/pywin32-214.win32-py2.5.exe):

1- take a computer where pywin32 is not installed
2- open a cmd prompt and type "wscript //h:wscript" => you get a prompt telling you that the default script host has been changed
3- install http://surfnet.dl.sourceforge.net/sourceforge/pywin32/pywin32-214.win32-py2.5.exe
4- open a new cmd prompt and type "wscript //h:wscript" => you get "can't change the default script host"

This problem might seem minor but in my company we use this "wscript //h:wscript" command to silently install softwares on client computers. And, when this problem occurs, our silent installation fails.

I will gladly help but I don't have visual studio.

Best regards,

Cyrille



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Comment By: Christoph Gohlke (cjgohlke)
Date: 2011-01-12 17:19

Message:
Seems that [HKEY_CLASSES_ROOT\pysFile\Shell\Open] and
[HKEY_CLASSES_ROOT\pysFile\Shell\Open2] keys need to be set in the
pywin32\com\win32comext\axscript\client\pyscript.py DllRegisterServer()
function. The following registry file works for me on Windows 7:

REGEDIT4

[HKEY_CLASSES_ROOT\pysFile]
@="Python Script File"

[HKEY_CLASSES_ROOT\pysFile\ScriptEngine]
@="Python"

[HKEY_CLASSES_ROOT\pysFile\ShellEx]

[HKEY_CLASSES_ROOT\pysFile\ShellEx\DropHandler]
@="{60254CA5-953B-11CF-8C96-00AA00B8708C}"

[HKEY_CLASSES_ROOT\pysFile\ShellEx\PropertySheetHandlers]

[HKEY_CLASSES_ROOT\pysFile\ShellEx\PropertySheetHandlers\WSHProps]
@="{60254CA5-953B-11CF-8C96-00AA00B8708C}"

[HKEY_CLASSES_ROOT\pysFile\Shell\Open]

[HKEY_CLASSES_ROOT\pysFile\Shell\Open\Command]
@=hex(2):22,25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,53,79,73,74,65,6d,33,32,5c,\
  57,53,63,72,69,70,74,2e,65,78,65,22,20,22,25,31,22,20,25,2a,00

[HKEY_CLASSES_ROOT\pysFile\Shell\Open2]
@=hex(2):4f,70,65,6e,20,26,77,69,74,68,20,43,6f,6d,6d,61,6e,64,20,50,72,6f,6d,\
  70,74,00
"MUIVerb"=hex(2):40,25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,53,79,73,74,65,6d,\
  33,32,5c,77,73,68,65,78,74,2e,64,6c,6c,2c,2d,34,35,31,31,00

[HKEY_CLASSES_ROOT\pysFile\Shell\Open2\Command]
@=hex(2):22,25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,53,79,73,74,65,6d,33,32,5c,\
  43,53,63,72,69,70,74,2e,65,78,65,22,20,22,25,31,22,20,25,2a,00


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Comment By: Mark Hammond (mhammond)
Date: 2011-01-12 17:15

Message:
In my (limited) testing, I unregistered the AXScript engine (python
...\axscript.py --unregister), which deletes that key and a number of
others, and the problem remains.  I can't verify it ever did work for me
though...

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Comment By: Christoph Gohlke (cjgohlke)
Date: 2011-01-12 16:26

Message:
Try rename or delete HKEY_CLASSES_ROOT\pysFile

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Comment By: Mark Hammond (mhammond)
Date: 2011-01-12 14:33

Message:
I can't see how python could manage to do this.  Some googling shows other
people are having a similar issue without Python being installed - I wonder
if the installation of *any* WSH-compatible scripting language is causing
the problem?

> I will gladly help but I don't have visual studio.

You don't need visual studio - running wscript.exe like that shouldn't be
loading Python at all (and certainly can't once it is uninstalled but the
problem remains).  I expect something we write to the registry isn't being
cleaned up or something...

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