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July 2008



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illegal Operations
CADCAM Software for All Woven Textiles
An illegal operation is a Windows message which usually occurs as the result of a bug in a program or a bug within Windows itself. You will generally see the message

.... has performed an illegal operation and will be shut down ....

What has happened is that Windows has detected that a program has attempted to do something that would cause the system to crash (the "illegal operation) and Windows has stepped in to prevent this from happening. By acting in this way Windows will have had to shut the offending program down and the error message is simply Windows informing the user that this action has been taken.

Additional information is sometimes offered as part of the error message but this information is usually of little use in determining the cause of problem.

It will usually be possible to continue using the computer as normal after an illegal operation but if Windows does not appear to be operating correctly you should restart the computer.