software not opening

  denniswks 03:30 03 Jan 05
Locked

An old program Collins Dictionary, much used for years, has just stopped working on my computer for no apparent reason. The error message is,
16 bit windows subsystem
C:\windows\system32\autoexec.nt
The system file is not suitable for running MSDOS and Microsoft Windows applications, Choose "close" to terminate the application.
I do not have original dic but is working fine on new laptop. Both on Windows XP Home SP2

  denniswks 03:45 03 Jan 05

found the answer in another section, error messages.

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