That error usually means that a program is trying to access a file, but the directory or file name is incorrect.
More details would be needed to try to provide more help (OS, application, how did the problem start, etc)
Last Wiki Answer Submitted: February 16, 2010 8:08 pm by carlosdl63,535 pts.
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If you look at this site you can see what the error means.
http://msdn.microsoft.com/en-us/library/ms681382(VS.85).aspx
I would try to open the application from its root to see if it will load.
When trying to download a program I receive the following I/O error 123
me too,you must rename those file because those original file’s name is incorrect.program can’t to access.