Windows 95 Err Msg: This Application Has Performed an Illegal...
This article was previously published under Q118539 SYMPTOMS
When you try to run an MS-DOS-based application, Windows 95 reports the
following error message:
This application has performed an illegal operation and will be
terminated. Quit all applications and then restart your computer.
The application attempted to execute an invalid instruction. Fault location: 2067:0127. CAUSE
Some MS-DOS-based applications load a DOS extender to provide access to
memory above the 1-megabyte (MB) range for executable code. Older MS-DOS-
based applications may load incompatible versions of DOS extenders and
cause the above error.
The following applications are known to exhibit this problem: Abraxas versions of Yacc and Lex: PCYACC 3.01 and PCLEX 2.05 RESOLUTION
Contact the manufacturer of your application to obtain an updated DOS
extender.
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