Is it possible to modify a registry entry via a .bat/.cmd script?
WindowsBatch FileCmdAutomationRegistryWindows Problem Overview
Is it possible to modify a registry value (whether string or DWORD) via a .bat/.cmd script?
Windows Solutions
Solution 1 - Windows
@Franci Penov - modify is possible in the sense of overwrite with /f, eg
reg add "HKCU\Software\etc\etc" /f /v "value" /t REG_SZ /d "Yes"
Solution 2 - Windows
You can use the REG command. From http://www.ss64.com/nt/reg.html:
Syntax:
REG QUERY [ROOT\]RegKey /v ValueName [/s]
REG QUERY [ROOT\]RegKey /ve --This returns the (default) value
REG ADD [ROOT\]RegKey /v ValueName [/t DataType] [/S Separator] [/d Data] [/f]
REG ADD [ROOT\]RegKey /ve [/d Data] [/f] -- Set the (default) value
REG DELETE [ROOT\]RegKey /v ValueName [/f]
REG DELETE [ROOT\]RegKey /ve [/f] -- Remove the (default) value
REG DELETE [ROOT\]RegKey /va [/f] -- Delete all values under this key
REG COPY [\\SourceMachine\][ROOT\]RegKey [\\DestMachine\][ROOT\]RegKey
REG EXPORT [ROOT\]RegKey FileName.reg
REG IMPORT FileName.reg
REG SAVE [ROOT\]RegKey FileName.hiv
REG RESTORE \\MachineName\[ROOT]\KeyName FileName.hiv
REG LOAD FileName KeyName
REG UNLOAD KeyName
REG COMPARE [ROOT\]RegKey [ROOT\]RegKey [/v ValueName] [Output] [/s]
REG COMPARE [ROOT\]RegKey [ROOT\]RegKey [/ve] [Output] [/s]
Key:
ROOT :
HKLM = HKey_Local_machine (default)
HKCU = HKey_current_user
HKU = HKey_users
HKCR = HKey_classes_root
ValueName : The value, under the selected RegKey, to edit.
(default is all keys and values)
/d Data : The actual data to store as a "String", integer etc
/f : Force an update without prompting "Value exists, overwrite Y/N"
\\Machine : Name of remote machine - omitting defaults to current machine.
Only HKLM and HKU are available on remote machines.
FileName : The filename to save or restore a registry hive.
KeyName : A key name to load a hive file into. (Creating a new key)
/S : Query all subkeys and values.
/S Separator : Character to use as the separator in REG_MULTI_SZ values
the default is "\0"
/t DataType : REG_SZ (default) | REG_DWORD | REG_EXPAND_SZ | REG_MULTI_SZ
Output : /od (only differences) /os (only matches) /oa (all) /on (no output)
Solution 3 - Windows
Yes, you can script using the reg command.
Example:
reg add HKCU\Software\SomeProduct
reg add HKCU\Software\SomeProduct /v Version /t REG_SZ /d v2.4.6
This would create key HKEY_CURRENT_USER\Software\SomeProduct, and add a String value "v2.4.6" named "Version" to that key.
reg /? has the details.
Solution 4 - Windows
This is how you can modify registry, without yes or no prompt and don't forget to run as administrator
reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\etc\etc /v Valuename /t REG_SZ /d valuedata /f
Below is a real example to set internet explorer as my default browser
reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\Associations\UrlAssociations\https\UserChoice /v ProgId /t REG_SZ /d IE.HTTPS /f
> /f Force: Force an update without prompting "Value exists, overwrite > Y/N" > > /d Data : The actual data to store as a "String", integer etc > > /v Value : The value name eg ProgId > > /t DataType : REG_SZ (default) | REG_DWORD | REG_EXPAND_SZ | > REG_MULTI_SZ
Learn more about Read, Set or Delete registry keys and values, save and restore from a .REG file. from here
Solution 5 - Windows
You can make a .reg file and call start on it. You can export any part of the registry as a .reg file to see what the format is.
Format here:
http://support.microsoft.com/kb/310516
This can be run on any Windows machine without installing other software.
Solution 6 - Windows
Yes. You can use reg.exe which comes with the OS to add, delete or query registry values. Reg.exe does not have an explicit modify command, but you can do it by doing delete and then add.
Solution 7 - Windows
In addition to reg.exe, I highly recommend that you also check out powershell, its vastly more capable in its registry handling.