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Compares specified registry subkeys or entries.
reg compare <keyname1> <keyname2> [{/v Valuename | /ve}] [{/oa | /od | /os | on}] [/s]| 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 thekeyname. Omitting\\<computername>\ causes the operation to default to the local computer. Thekeyname must include a valid root key. Valid root keys for the local computer are:HKLM,HKCU,HKCR,HKU, andHKCC. If a remote computer is specified, valid root keys are:HKLM andHKU. If the registry key name contains a space, enclose the key name in quotes. |
<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 thekeyname. Omitting\\<computername>\ causes the operation to default to the local computer. Specifying only the computer name inkeyname2 causes the operation to use the path to the subkey specified inkeyname1. Thekeyname must include a valid root key. Valid root keys for the local computer are:HKLM,HKCU,HKCR,HKU, andHKCC. If a remote computer is specified, valid root keys are:HKLM andHKU. If the registry key name contains a space, enclose the key name in quotes. |
/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. |
The return values for thereg 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 |
|---|---|
| = | KeyName1 data is equal toKeyName2 data. |
| < | KeyName1 data is less thanKeyName2 data. |
| > | KeyName1 data is greater thanKeyName2 data. |
To compare all values under the keyMyApp with all values under the keySaveMyApp, type:
reg compare HKLM\Software\MyCo\MyApp HKLM\Software\MyCo\SaveMyAppTo compare the value for the Version under the keyMyCo and the value for the Version under the keyMyCo1, type:
reg compare HKLM\Software\MyCo HKLM\Software\MyCo1 /v VersionTo compare all subkeys and values under HKLM\Software\MyCo on the computer named ZODIAC, with all subkeys and values under HKLM\Software\MyCo on the local computer, type:
reg compare \\ZODIAC\HKLM\Software\MyCo \\. /sWas this page helpful?
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