REGEDIT4

[HKEY_CLASSES_ROOT\*\Shell\Check In]

[HKEY_CLASSES_ROOT\*\Shell\Check In\command]
@="cvs.exe commit \"%1\""

[HKEY_CLASSES_ROOT\*\Shell\Check Out]

[HKEY_CLASSES_ROOT\*\Shell\Check Out\command]
@="cvs.exe edit \"%1\""

[HKEY_CLASSES_ROOT\*\Shell\Update]

[HKEY_CLASSES_ROOT\*\Shell\Update\command]
@="cvs.exe update \"%1\""