Tweak Library – Associate application to an unrecognized file type.

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Associate application to an unrecognized file type.

Tweak for : Windows 98, Windows Me, Windows XP, Windows 2003, Windows 2000, Windows Vista

Description:

If you open a file with unrecognized file type, you have to search on Microsoft’s site or have to search appropriate application in the programs list. This setting enables you to associate every file with unrecognized file format to a suitable application. Therefore, the next time you open file of this type, the application originally associated to this file will open it. This avoids you from associating the application to such files every second time.

For this, go to Start > Run menu, enter “regedit” and navigate to the registry path listed below. Now, right-click and modify data of the “Default” String value to “Open”. Then, create subkeys “\Open\Command” as explained below. Finally, change the data of “Default” String value under “Command” subkey, with the Exe file name of associate program (like "Notepad.exe") linked to the unknown file type (write complete path if not in \Windows\system32\ folder).

The changes take effect after a restart or logoff.

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Associate application with unknown file types.reg

The '.reg' file will associate application with unknown file type with the 'Notepad'.

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Deassociate application with unknown file types (Default).reg

The '.reg' file will associate application with its Web service by default.

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Registry Entry Details:

Registry Entry 1 :

[HKEY_CLASSES_ROOT\Unknown\shell\]

Key Type :

Root

Value Name :

Default

Data Type :

REG_SZ (String Value)

Enabled Value :

Disabled value :

Other value :

Open

Value Action :

Modified

Registry Entry 2 :

[HKEY_CLASSES_ROOT\Unknown\shell\]

Key Type :

Root

Value Name :

Open

Data Type :

Key

Enabled Value :

Disabled value :

Other value :

Value Action :

Add an Entry

Registry Entry 3 :

[HKEY_CLASSES_ROOT\Unknown\shell\Open]

Key Type :

Root

Value Name :

Command

Data Type :

Key

Enabled Value :

Disabled value :

Other value :

Value Action :

Add an Entry

Registry Entry 4 :

[HKEY_CLASSES_ROOT\Unknown\shell\Open\Command\]

Key Type :

Root

Value Name :

Default

Data Type :

REG_SZ (String Value)

Enabled Value :

Disabled value :

Other value :

Notepad.exe

Value Action :

Modified

Steps ScreenShots:

Apply registry settings according below given steps of screenshots with related changes.

The unknown file is associated with notepad.

Windows calls its Web service by default when an unknown file association is called.

First, click the 'Start' button, and select 'Run'. In the resulting dialog box, type "regedit".

Second, go to [HKEY_CLASSES_ROOT\Unknown\shell\] and right click on the String value "Default" and select 'Modify'.

Keep the value data as "Open" and Click 'OK'.

Now create a Sub key as "Open" under the key "shell".

Create another Sub key "Command" under the Sub key "Open".

Next, right click on the String value "Default" of the Sub key "command" and select 'Modify'.

Finally keep the value data like "Notepad.exe" and click 'OK'.