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To run multiple instances of the registry editor , just run it with a key -m
 
regedit.exe-m
 
 
Interactive Import Registry File.
regedit.exe drive: \ path \ k_faylu.reg
 
This is the default action for REG-files. When you double-click on the REG-file, Registry Editor prompts you to make changes to the registry.
 
Pacific Import Registry File. Evidence in this case does not appear, the import is executed immediately:
regedit.exe / s drive: \ path \ k_faylu.reg
 
 
Export the entire registry to the specified file:
regedit.exe / e drive: \ path \ k_faylu.reg
 
Export done in silent mode without user interaction and without dialog boxes. To export a specific section, use the form:
regedit / e drive: \ path \ k_faylu.reg "HKEY_CURRENT_USER \ Control Panel \ Desktop"
 
 
By default, regedit.exe, starting with Windows 2000, while exporting the registry keys created REG-files encoded UNISODE. This behavior can be overridden by specifying the key instead of / a key / e.
regedit / a drive: \ path \ k_faylu.reg "HKEY_CURRENT_USER \ Control Panel \ Desktop"
As a result, the file will be encoded win1251 with this headline:
REGEDIT4 [HKEY_CURRENT_USER \ Control Panel \ Desktop] "ActiveWndTrackTimeout" = dword: 00000000 ...
 
 
In Windows 9x registry editor took three more keys:
 
Perform operations on an alternate file with a custom branch of the registry (HKCU).
regedit.exe / L: drive: \ path \ k_faylu \ user.dat
 
 
Perform operations on file with the alternate branch of the registry HKLM.
regedit.exe / R: drive: \ path \ k_faylu \ system.dat
 
 
Remove from the register of the specified partition.
regedit.exe / D "HKEY_CURRENT_USER \ Control Panel \ Desktop"