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Examples
To add the key HKLM\Software\MyCo on remote computer ABC, type:
reg add \\ABC\HKLM\Software\MyCo
To add a registry entry to HKLM\Software\MyCo with a value named Data, the type REG_BINARY, and data of fe340ead, type:
reg add HKLM\Software\MyCo /v Data /t REG_BINARY /d fe340ead
To add a multi-valued registry entry to HKLM\Software\MyCo with a value named MRU, the type REG_MULTI_SZ, and data of fax\0mail\0, type:
reg add HKLM\Software\MyCo /v MRU /t REG_MULTI_SZ /d fax\0mail\0
To add an expanded registry entry to HKLM\Software\MyCo with a value named Path, the type REG_EXPAND_SZ, and data of %systemroot%, type:
reg add HKLM\Software\MyCo /v Path /t REG_EXPAND_SZ /d ^%systemroot^%
reg compare
Compares specified registry subkeys or entries.
Syntax
reg compare <keyname1> <keyname2> [{/v Valuename | /ve}] [{/oa | /od | /os | on}] [/s]
Parameters
Parameter
Description
<keyname1>
Specifies the full path of the subkey or entry to be added. To specify a remote computer, include the computer name (in the format \\<computername>\) as part of the keyname. Omitting \\<computername>\ causes the operation to default to the local computer. The keyname must include a valid root key. Valid root keys for t...
<keyname2>
Specifies the full path of the second subkey to be compared. To specify a remote computer, include the computer name (in the format \\<computername>\) as part of the keyname. Omitting \\<computername>\ causes the operation to default to the local computer. Specifying only the computer name in keyname2 causes the operat...
/v <Valuename>
Specifies the value name to compare under the subkey.
/ve
Specifies that only entries that have a value name of null should be compared.
/oa
Specifies that all differences and matches are displayed. By default, only the differences are listed.
/od
Specifies that only differences are displayed. This is the default behavior.
/os
Specifies that only matches are displayed. By default, only the differences are listed.
/on
Specifies that nothing is displayed. By default, only the differences are listed.
/s
Compares all subkeys and entries recursively.
/?
Displays help at the command prompt.
<keyname1>
\\<computername>\
\\<computername>\
<keyname2>
\\<computername>\
\\<computername>\
<Valuename>
Remarks
The return values for the reg compare operation are:
Value
Description
0
The comparison is successful and the result is identical.
1
The comparison failed.
2
The comparison was successful and differences were found.
The symbols displayed in the results, include:
Symbol
Description
=