Registry is Invalid and Unused File Extention

Hi, i just downloaded CCleaner and Eusing Free Registry Cleaner and i used them to clean my registry. Every now and then for CCleaner this pops up as an issue:

Unused File Extension .DVR HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.DVR

Is that why my explorer crashs every now and then? and how can i fix this?

Also, in Eusing Free Registry Cleaner, this always pops up:

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\ ##### %windir%\Speech\Engines\SR\en-US\L1033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\AMs\AF031033 ##### %windir%\Speech\Engines\SR\en-US\af031033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\AMs\AI031033 ##### %windir%\Speech\Engines\SR\en-US\ai031033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\AMs\AM031033 ##### %windir%\Speech\Engines\SR\en-US\am031033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\LMs\Main\ ##### %windir%\Speech\Engines\SR\en-US\L1033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\LMs\Main\Pronunciation ##### %windir%\Speech\Engines\SR\en-US\p1033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\LMs\Main\Spelling ##### %windir%\Speech\Engines\SR\en-US\s1033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\LMs\Main\URL ##### %windir%\Speech\Engines\SR\en-US\u1033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-1033-80-DESK\Models\1033\L1033\LMs\Main\HowDoI ##### %windir%\Speech\Engines\SR\en-US\t1033

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-2057-80-DESK\Models\2057\L2057\ ##### %windir%\Speech\Engines\SR\en-GB\L2057

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-2057-80-DESK\Models\2057\L2057\AMs\AF032057 ##### %windir%\Speech\Engines\SR\en-GB\af032057

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-2057-80-DESK\Models\2057\L2057\AMs\AI032057 ##### %windir%\Speech\Engines\SR\en-GB\ai032057

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-2057-80-DESK\Models\2057\L2057\AMs\AM032057 ##### %windir%\Speech\Engines\SR\en-GB\am032057

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-2057-80-DESK\Models\2057\L2057\LMs\Main\ ##### %windir%\Speech\Engines\SR\en-GB\L2057

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-2057-80-DESK\Models\2057\L2057\LMs\Main\Pronunciation ##### %windir%\Speech\Engines\SR\en-GB\p2057

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Speech\Recognizers\Tokens\MS-2057-80-DESK\Models\2057\L2057\LMs\Main\Spelling ##### %windir%\Speech\Engines\SR\en-GB\s2057

Invalid File or Folder ##### HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\IME\China\imesc\Directories\InstallDir ##### %SystemRoot%\IME\IMESC

Obsolete Software Key ##### HKEY_CURRENT_USER\Software ##### Macromedia

If anyone can answer the same questions above for this it would be appreciated! Thanks

See you also posted here

http://social.answers.microsoft.com/Forums...86-8c48ea49ec06

For the ccleaner part perhaps look here

http://forum.notebookreview.com/showthread.php?t=269265

As for the Eusing question I have no idea I'm afraid.