解决方法如下:
“开始”——“运行”——输入“cmd”进入命令行
输入“regsvr32 c:\\windows\\system32\\pngfilt.dll”一般即可解决问题。 如果没有效果则：
以下内容放入文本文件，存为reg后缀。双击运行即可。 Windows Registry Editor Version 5.00 ;PNG file association fix for Windows XP
;Created on May 17, 2007 by Ramesh Srinivasan [HKEY_CLASSES_ROOT\\.PNG] \@=\
\
[HKEY_CLASSES_ROOT\\.PNG\\PersistentHandler] @=\[HKEY_CLASSES_ROOT\\pngfile] @=\
\
\d,00,52,\\
00,6f,00,6f,00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,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,00,33,00,30,00,35,00,00,00 \[HKEY_CLASSES_ROOT\\pngfile\\CLSID]
@=\[HKEY_CLASSES_ROOT\\pngfile\\DefaultIcon] @=\
[HKEY_CLASSES_ROOT\\pngfile\\shell] @=\
[HKEY_CLASSES_ROOT\\pngfile\\shell\\open] \
[HKEY_CLASSES_ROOT\\pngfile\\shell\\open\\command] @=\
C:\\\\WINDOWS\\\\system32\\\\shimgvw.dll,ImageView_Fullscreen %1\[HKEY_CLASSES_ROOT\\pngfile\\shell\\open\\DropTarget] \[HKEY_CLASSES_ROOT\\pngfile\\shell\\printto]
[HKEY_CLASSES_ROOT\\pngfile\\shell\\printto\\command]
@=\/pt \\\
[HKEY_CLASSES_ROOT\\SystemFileAssociations\\.PNG] \
[-HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts\\.PNG]
[-HKEY_CLASSES_ROOT\\Mime\\Database\\Content Type\\image/x-png] [-HKEY_CLASSES_ROOT\\Mime\\Database\\Content Type\\image/png] [HKEY_CLASSES_ROOT\\Mime\\Database\\Content Type\\image/x-png] \
\[HKEY_CLASSES_ROOT\\Mime\\Database\\Content Type\\image/x-png\\Bits]
\[HKEY_CLASSES_ROOT\\Mime\\Database\\Content Type\\image/png] \
\[HKEY_CLASSES_ROOT\\Mime\\Database\\Content Type\\image/png\\Bits]
\[HKEY_CLASSES_ROOT\\CLSID\\{A3CCEDF7-2DE2-11D0-86F4-00A0C913F750}] @=\
[HKEY_CLASSES_ROOT\\CLSID\\{A3CCEDF7-2DE2-11D0-86F4-00A0C913F750}\\InProcServer32]
@=\\
[HKEY_CLASSES_ROOT\\CLSID\\{A3CCEDF7-2DE2-11D0-86F4-00A0C913F750}\\ProgID]
@=\
[HKEY_CLASSES_ROOT\\PNGFilter.CoPNGFilter] @=\
[HKEY_CLASSES_ROOT\\PNGFilter.CoPNGFilter\\CLSID] @=\[HKEY_CLASSES_ROOT\\PNGFilter.CoPNGFilter.1] @=\
[HKEY_CLASSES_ROOT\\PNGFilter.CoPNGFilter.1\\CLSID] @=\