This reg file will restore .tif and .tiff file association to Windows XP
default.
Copy between "=====" and paste in notepad, save as tif.reg
Double-click or right-click and merge into the Registry.
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Windows Registry Editor Version 5.00
[-HKEY_CLASSES_ROOT\.tiff]
[HKEY_CLASSES_ROOT\.tiff]
"Content Type"="image/tiff"
"PerceivedType"="image"
@="TIFImage.Document"
[HKEY_CLASSES_ROOT\.tiff\OpenWithProgids]
"TIFImage.Document"=hex(0):
[HKEY_CLASSES_ROOT\.tiff\PersistentHandler]
@="{098f2470-bae0-11cd-b579-08002b30bfeb}"
[HKEY_CLASSES_ROOT\.tif]
"Content Type"="image/tiff"
"PerceivedType"="image"
@="TIFImage.Document"
[HKEY_CLASSES_ROOT\.tif\OpenWithProgids]
"TIFImage.Document"=hex(0):
[HKEY_CLASSES_ROOT\.tif\PersistentHandler]
@="{098f2470-bae0-11cd-b579-08002b30bfeb}"
[-HKEY_CLASSES_ROOT\TIFImage.Document]
[HKEY_CLASSES_ROOT\TIFImage.Document]
"EditFlags"=dword:00010000
"FriendlyTypeName"=hex(2):40,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,\
00,6f,00,6f,00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,\
32,00,5c,00,73,00,68,00,69,00,6d,00,67,00,76,00,77,00,2e,00,64,00,6c,00,6c,\
00,2c,00,2d,00,33,00,30,00,36,00,00,00
"ImageOptionFlags"=dword:00000000
[HKEY_CLASSES_ROOT\TIFImage.Document\DefaultIcon]
@="shimgvw.dll,4"
[HKEY_CLASSES_ROOT\TIFImage.Document\shell]
[HKEY_CLASSES_ROOT\TIFImage.Document\shell\open]
"MuiVerb"="@shimgvw.dll,-550"
[HKEY_CLASSES_ROOT\TIFImage.Document\shell\open\command]
@="rundll32.exe C:\\WINDOWS\\System32\\shimgvw.dll,ImageView_Fullscreen
%1"
[HKEY_CLASSES_ROOT\TIFImage.Document\shell\open\DropTarget]
"Clsid"="{E84FDA7C-1D6A-45F6-B725-CB260C236066}"
[HKEY_CLASSES_ROOT\TIFImage.Document\shell\printto]
[HKEY_CLASSES_ROOT\TIFImage.Document\shell\printto\command]
@="rundll32.exe C:\\WINDOWS\\System32\\shimgvw.dll,ImageView_PrintTo /pt
\"%1\" \"%2\" \"%3\" \"%4\""
========================
ju.c