Windows Registry - Revision history

Huntertur: Switch to new KB template

2023-10-31T02:33:22Z

Switch to new KB template

← Older revision		Revision as of 02:33, 31 October 2023
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	=== KB articles ===		=== KB articles ===

	*~~[https://helparchive.huntertur.net/document/99262~~ Q78346: Windows: Maximum Valid Size for REG.DAT and .INI Files]		*{{KB\|Q78346\|Windows: Maximum Valid Size for REG.DAT and .INI Files}}
	*~~[https://helparchive.huntertur.net/document/96873~~ Q80393: How to Rebuild the Default Windows REG.DAT File]		*{{KB\|Q80393\|How to Rebuild the Default Windows REG.DAT File}}
	*~~[https://helparchive.huntertur.net/document/96150~~ Q81530: Cannot Use How To Use Help in Registration Editor]		*{{KB\|Q81530\|Cannot Use How To Use Help in Registration Editor}}
	*~~[https://helparchive.huntertur.net/document/97857~~ Q82144: REG.DAT May Need Update if Both Windows 3.0, 3.1 Installed]		*{{KB\|Q82144\|REG.DAT May Need Update if Both Windows 3.0, 3.1 Installed}}
	*~~[https://helparchive.huntertur.net/document/97518~~ Q82650: OLE: SETUP.REG Can Be Used to Repair REG.DAT]		*{{KB\|Q82650\|OLE: SETUP.REG Can Be Used to Repair REG.DAT}}
	*~~[https://helparchive.huntertur.net/document/98841~~ Q82810: Where Windows Searches for REG.DAT]		*{{KB\|Q82810\|Where Windows Searches for REG.DAT}}
	*~~[https://helparchive.huntertur.net/document/97812~~ Q82814: Re-Registering .REG Files]		*{{KB\|Q82814\|Re-Registering .REG Files}}
	*~~[https://helparchive.huntertur.net/document/97859~~ Q82821: Registration Info Editor (REGEDIT) Command-Line Switches]		*{{KB\|Q82821\|Registration Info Editor (REGEDIT) Command-Line Switches}}
	*~~[https://helparchive.huntertur.net/document/95973~~ Q84791: Associating Files and Passing Command-Line Parameters]		*{{KB\|Q84791\|Associating Files and Passing Command-Line Parameters}}
	*~~[https://helparchive.huntertur.net/document/99084~~ Q85326: Windows Err Msg: Failed to Register Server]		*{{KB\|Q85326\|Windows Err Msg: Failed to Register Server}}

	== References ==		== References ==

Huntertur: Add Category:File Formats and remove viewer from helparchive links

2023-10-31T01:18:30Z

Add Category:File Formats and remove viewer from helparchive links

← Older revision		Revision as of 01:18, 31 October 2023
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	=== KB articles ===		=== KB articles ===

	*[https://helparchive.huntertur.net~~/viewer~~/document/99262 Q78346: Windows: Maximum Valid Size for REG.DAT and .INI Files]		*[https://helparchive.huntertur.net/document/99262 Q78346: Windows: Maximum Valid Size for REG.DAT and .INI Files]
	*[https://helparchive.huntertur.net~~/viewer~~/document/96873 Q80393: How to Rebuild the Default Windows REG.DAT File]		*[https://helparchive.huntertur.net/document/96873 Q80393: How to Rebuild the Default Windows REG.DAT File]
	*[https://helparchive.huntertur.net~~/viewer~~/document/96150 Q81530: Cannot Use How To Use Help in Registration Editor]		*[https://helparchive.huntertur.net/document/96150 Q81530: Cannot Use How To Use Help in Registration Editor]
	*[https://helparchive.huntertur.net~~/viewer~~/document/97857 Q82144: REG.DAT May Need Update if Both Windows 3.0, 3.1 Installed]		*[https://helparchive.huntertur.net/document/97857 Q82144: REG.DAT May Need Update if Both Windows 3.0, 3.1 Installed]
	*[https://helparchive.huntertur.net~~/viewer~~/document/97518 Q82650: OLE: SETUP.REG Can Be Used to Repair REG.DAT]		*[https://helparchive.huntertur.net/document/97518 Q82650: OLE: SETUP.REG Can Be Used to Repair REG.DAT]
	*[https://helparchive.huntertur.net~~/viewer~~/document/98841 Q82810: Where Windows Searches for REG.DAT]		*[https://helparchive.huntertur.net/document/98841 Q82810: Where Windows Searches for REG.DAT]
	*[https://helparchive.huntertur.net~~/viewer~~/document/97812 Q82814: Re-Registering .REG Files]		*[https://helparchive.huntertur.net/document/97812 Q82814: Re-Registering .REG Files]
	*[https://helparchive.huntertur.net~~/viewer~~/document/97859 Q82821: Registration Info Editor (REGEDIT) Command-Line Switches]		*[https://helparchive.huntertur.net/document/97859 Q82821: Registration Info Editor (REGEDIT) Command-Line Switches]
	*[https://helparchive.huntertur.net~~/viewer~~/document/95973 Q84791: Associating Files and Passing Command-Line Parameters]		*[https://helparchive.huntertur.net/document/95973 Q84791: Associating Files and Passing Command-Line Parameters]
	*[https://helparchive.huntertur.net~~/viewer~~/document/99084 Q85326: Windows Err Msg: Failed to Register Server]		*[https://helparchive.huntertur.net/document/99084 Q85326: Windows Err Msg: Failed to Register Server]

	== References ==		== References ==
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	<references />		<references />

			[[Category:File Formats]]
	[[Category:Windows]]		[[Category:Windows]]

Huntertur: /* Hive file format */ Add todo

2023-10-30T17:00:07Z

Hive file format: Add todo

← Older revision		Revision as of 17:00, 30 October 2023
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	The native and IE5 file formats appear to be the same despite the enhanced functionality in the IE5 registry; they both even start with the same header (<code>SHCC3.10</code>). hivex 1.3.23 does not understand the format, saying "not a Windows NT Registry hive file".<ref>https://github.com/libguestfs/hivex/blob/v1.3.23/lib/handle.c#L174</ref> There is an undated document written by B.D. detailing the format of the Windows 3.1 registry and how it differs from later versions.<ref>https://web.archive.org/web/20110107144933fw_/http://files.volatileminds.net/winreg.txt</ref>		The native and IE5 file formats appear to be the same despite the enhanced functionality in the IE5 registry; they both even start with the same header (<code>SHCC3.10</code>). hivex 1.3.23 does not understand the format, saying "not a Windows NT Registry hive file".<ref>https://github.com/libguestfs/hivex/blob/v1.3.23/lib/handle.c#L174</ref> There is an undated document written by B.D. detailing the format of the Windows 3.1 registry and how it differs from later versions.<ref>https://web.archive.org/web/20110107144933fw_/http://files.volatileminds.net/winreg.txt</ref>

			TODO: figure out where all the REGEDIT4-style data gets stored in the Windows 3.1-style <code>REG16X2.DAT</code>

	=== KB articles ===		=== KB articles ===

Huntertur: Add section on format

2023-10-30T16:25:24Z

Add section on format

← Older revision		Revision as of 16:25, 30 October 2023
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	*If the <code> = </code> and value are omitted, the key is created without a value.		*If the <code> = </code> and value are omitted, the key is created without a value.
	*Escape sequences are not understood.		*Escape sequences are not understood.

			=== Hive file format ===

			The native and IE5 file formats appear to be the same despite the enhanced functionality in the IE5 registry; they both even start with the same header (<code>SHCC3.10</code>). hivex 1.3.23 does not understand the format, saying "not a Windows NT Registry hive file".<ref>https://github.com/libguestfs/hivex/blob/v1.3.23/lib/handle.c#L174</ref> There is an undated document written by B.D. detailing the format of the Windows 3.1 registry and how it differs from later versions.<ref>https://web.archive.org/web/20110107144933fw_/http://files.volatileminds.net/winreg.txt</ref>

	=== KB articles ===		=== KB articles ===

Huntertur: /* REGEDT16.EXE */ Add another note

2023-10-30T16:08:15Z

REGEDT16.EXE: Add another note

← Older revision		Revision as of 16:08, 30 October 2023
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	*<code>REG16X2.E<em>nn</em></code> for 00-99 are created next to the file for each installation and uninstallation attempt.		*<code>REG16X2.E<em>nn</em></code> for 00-99 are created next to the file for each installation and uninstallation attempt.
	*The program starts significantly more quickly than <code>REGEDIT.EXE /V</code>.		*The program starts significantly more quickly than <code>REGEDIT.EXE /V</code>.
			*<code>%WINDIR%\SYSTEM\REGDATA</code> also gets created with a bunch of <code>.BIN</code> files. They are full of strings about certificate authorities. Microsoft states this directory is used for Terminal Server licensing, but the timestamps of the files show that they were created with the IE5 installation.<ref>https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/terminal-server-licensing</ref>

	=== Native <code>.REG</code> file format ===		=== Native <code>.REG</code> file format ===

Huntertur: /* Native .REG file format */ Clarify root ntoe

2023-10-30T05:07:26Z

Native .REG file format: Clarify root ntoe

← Older revision		Revision as of 05:07, 30 October 2023
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	*The first line is <code>REGEDIT</code> with no version afterwards. Contrast this with <code>REGEDIT4</code> and <code>Windows Registry Editor Version 5.00</code> present in later versions.		*The first line is <code>REGEDIT</code> with no version afterwards. Contrast this with <code>REGEDIT4</code> and <code>Windows Registry Editor Version 5.00</code> present in later versions.
	*<code>HKEY_CLASSES_ROOT</code> is explicitly prepended to every key. Contrast this with <code>REGEDIT.EXE /V</code> strongly implying that the root is ~~that~~ ~~itself~~.		*<code>HKEY_CLASSES_ROOT</code> is explicitly prepended to every key. Contrast this with <code>REGEDIT.EXE /V</code> strongly implying that the root is <code>\</code> instead.
	*Every processed line has the format <code>HKEY_CLASSES_ROOT\path\to\key = Value of key</code>.		*Every processed line has the format <code>HKEY_CLASSES_ROOT\path\to\key = Value of key</code>.
	*Lines that do not start with <code>HKEY_CLASSES_ROOT</code> are ignored; no special character is needed to start a comment.<ref><code>%WINDIR%\SYSTEM\SETUP.REG</code> line 4</ref>		*Lines that do not start with <code>HKEY_CLASSES_ROOT</code> are ignored; no special character is needed to start a comment.<ref><code>%WINDIR%\SYSTEM\SETUP.REG</code> line 4</ref>

Huntertur: /* Native .REG file format */ Note lack of escaping

2023-10-30T05:06:50Z

Native .REG file format: Note lack of escaping

← Older revision		Revision as of 05:06, 30 October 2023
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	*Lines that do not start with <code>HKEY_CLASSES_ROOT</code> are ignored; no special character is needed to start a comment.<ref><code>%WINDIR%\SYSTEM\SETUP.REG</code> line 4</ref>		*Lines that do not start with <code>HKEY_CLASSES_ROOT</code> are ignored; no special character is needed to start a comment.<ref><code>%WINDIR%\SYSTEM\SETUP.REG</code> line 4</ref>
	*If the <code> = </code> and value are omitted, the key is created without a value.		*If the <code> = </code> and value are omitted, the key is created without a value.
			*Escape sequences are not understood.

	=== KB articles ===		=== KB articles ===

Huntertur: /* REGEDT16.EXE */ Add location note

2023-10-30T04:57:06Z

REGEDT16.EXE: Add location note

← Older revision		Revision as of 04:57, 30 October 2023
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	This one comes with the 16-bit version of Internet Explorer 5.01.		This one comes with the 16-bit version of Internet Explorer 5.01.

			*This gets dumped into <code>%WINDIR%\SYSTEM</code> unlike the native <code>REGEDIT.EXE</code>
	*The About dialog states this is for both Windows 3.1 and Windows NT 3.51.		*The About dialog states this is for both Windows 3.1 and Windows NT 3.51.
	*<code>HKEY_CURRENT_USER</code> and <code>HKEY_LOCAL_MACHINE</code> are present too.		*<code>HKEY_CURRENT_USER</code> and <code>HKEY_LOCAL_MACHINE</code> are present too.

Huntertur: /* REGEDIT.EXE */ Specify where keys get spaces

2023-10-30T04:46:35Z

REGEDIT.EXE: Specify where keys get spaces

← Older revision		Revision as of 04:46, 30 October 2023
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	*It only sees the type registrations (<code>HKEY_CLASSES_ROOT</code> in <code>REGEDT16.EXE</code>).		*It only sees the type registrations (<code>HKEY_CLASSES_ROOT</code> in <code>REGEDT16.EXE</code>).
	*~~Spaces~~ in keys are replaced with <code>#</code>.		*In verbose mode, spaces in keys are replaced with <code>#</code>.
	*There is only one value per key (<code>(Default)</code> in <code>REGEDT16.EXE</code>), and it is always a string.		*There is only one value per key (<code>(Default)</code> in <code>REGEDT16.EXE</code>), and it is always a string.
	*A "Revert to Last Save" menu item exists.		*A "Revert to Last Save" menu item exists.

Huntertur: /* KB articles */ Add more relevant KB articles

2023-10-30T04:41:20Z

KB articles: Add more relevant KB articles

← Older revision		Revision as of 04:41, 30 October 2023
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	*[https://helparchive.huntertur.net/viewer/document/97812 Q82814: Re-Registering .REG Files]		*[https://helparchive.huntertur.net/viewer/document/97812 Q82814: Re-Registering .REG Files]
	*[https://helparchive.huntertur.net/viewer/document/97859 Q82821: Registration Info Editor (REGEDIT) Command-Line Switches]		*[https://helparchive.huntertur.net/viewer/document/97859 Q82821: Registration Info Editor (REGEDIT) Command-Line Switches]
			*[https://helparchive.huntertur.net/viewer/document/95973 Q84791: Associating Files and Passing Command-Line Parameters]
	*[https://helparchive.huntertur.net/viewer/document/99084 Q85326: Windows Err Msg: Failed to Register Server]		*[https://helparchive.huntertur.net/viewer/document/99084 Q85326: Windows Err Msg: Failed to Register Server]