problem with a .bat file

[swan_x]

i have one bat file with a command line for delete one reg key...

REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\StillImage\Registered Applications" /f

if run this bat in XY this bat not work, ("error the key not exist"!);
if run same bat on win explorer, this work!!

why this???

[nas8e9]

i have one bat file with a command line for delete one reg key...

REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\StillImage\Registered Applications" /f

if run this bat in XY this bat not work, ("error the key not exist"!);
if run same bat on win explorer, this work!!

why this???

It seems related to WOW64: running a similar script in a 64-bit command prompt does work correctly. As for working around this, I'm not sure at the moment.

[admin]

i have one bat file with a command line for delete one reg key...

REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\StillImage\Registered Applications" /f

if run this bat in XY this bat not work, ("error the key not exist"!);
if run same bat on win explorer, this work!!

why this???

You have a screenshot of the error message?

[swan_x]

no screenshot...
if don't write /f (without confirmation) at the end:

REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\StillImage\Registered Applications"

i have 2 choices Yes or Not
for every choice, the window closes immediately...but i see the error message:
<error: can not find the registry key or value specified>

this does not happen if i use win explorer...
at the end of my bat i have the message:
<operation completed>

and the key is deleted successfully!!

[swan_x]

i have one bat file with a command line for delete one reg key...

REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\StillImage\Registered Applications" /f

if run this bat in XY this bat not work, ("error the key not exist"!);
if run same bat on win explorer, this work!!

why this???

It seems related to WOW64: running a similar script in a 64-bit command prompt does work correctly. As for working around this, I'm not sure at the moment.

yes i know! this is the problem!

[swan_x]

try this:
run-regedit
in HKEY_LOCAL_MACHINE\SOFTWARE
creates new key 555

now copy this in new txt document, and save to xxx.bat:
REG DELETE HKLM\Software\555

ok, run xxx.bat from XY ---- you have window confirmation Y/N ---- hold Y ---- error (impossible find this key!!)
go to regedit, the key was not deleted !!

now open win explorer, run xxx.bat ----- you have window confirmation Y/N ---- hold Y ---- OK!!
go to regedit, key deleted !!

same result if "run as administartor" xxx.bat file from XY .... the result does not change!

[nas8e9]

try this:
run-regedit
in HKEY_LOCAL_MACHINE\SOFTWARE
creates new key 555

now copy this in new txt document, and save to xxx.bat:
REG DELETE HKLM\Software\555

ok, run xxx.bat from XY ---- you have window confirmation Y/N ---- hold Y ---- error (impossible find this key!!)
go to regedit, the key was not deleted !!

now open win explorer, run xxx.bat ----- you have window confirmation Y/N ---- hold Y ---- OK!!
go to regedit, key deleted !!

same result if "run as administartor" xxx.bat file from XY .... the result does not change!

I'm not sure my first post in this thread was clear, so:

64-bit versions of Windows basically lie to 32-bit apps in order to preserve compatibility; this functionality is referred to as WOW64. Part of this system is registry virtualisation, where 32-bit apps's registry reads and writes are redirected to different parts of the registry.

The second piece of the puzzle is that when 32-bit apps call the command prompt (by executing a .bat file in your case), they get a 32-bit command prompt rather than the 64-bit one you get when starting one through Windows Explorer. As a result, .bat- or .cmd-files behave differently when run from a 32-bit app instead of (64-bit) Windows Explorer. That's what causes your registry access from a .bat-file to fail.

As for working around this problem, I don't know at the moment.

[Stefan]

On 64-bit OS, 32-bit apps have different locations then 64-bit apps

64-bit see and use: HKLM\SOFTWARE\
32-bit see and use: HKLM\SOFTWARE\Wow6432Node\ as there "HKLM\SOFTWARE\"


Take an look if you have an 32-bit version of REG.exe in your %systemroot%\syswow64\ folder.

Perhaps this will work then:

Code: Select all

IF %PROCESSOR_ARCHITEW6432%LEER==LEER (
  REM 32
  REG DELETE HKLM\Software\555
)else(
  REM 64
  %systemroot%\syswow64\REG DELETE HKLM\Software\555
)

[nas8e9]

On 64-bit OS, 32-bit apps have different locations then 64-bit apps

64-bit see and use: HKLM\SOFTWARE\
32-bit see and use: HKLM\SOFTWARE\Wow6432Node\ as there "HKLM\SOFTWARE\"


Take an look if you have an 32-bit version of REG.exe in your %systemroot%\syswow64\ folder.

Perhaps this will work then:

Code: Select all

IF %PROCESSOR_ARCHITEW6432%LEER==LEER (
  REM 32
  REG DELETE HKLM\Software\555
)else(
  REM 64
  %systemroot%\syswow64\REG DELETE HKLM\Software\555
)

Thank you for the pointers! I had to make some changes (SysWOW64 vs. Sysnative) and ended up with this:

Code: Select all

@ECHO OFF
IF DEFINED PROCESSOR_ARCHITEW6432 (
	REM 32
	ECHO "Called from a 32-bit process."
	%systemroot%\sysnative\REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\StillImage\Registered Applications" /f
) ELSE (
	REM 64
	ECHO "Called from a 64-bit process."
	REG DELETE "HKLM\Software\Microsoft\Windows\CurrentVersion\StillImage\Registered Applications" /f
)

[swan_x]

yeahhhh!!!
tnxs nas8e9

now work!!

%systemroot%\sysnative\REG DELETE HKLM\Software\555


............SOLVED !!!