This will ask the server to ignore the ASP error and continue interpret the next ASP command.

It is a very bad practice to use this in codes. Many of the errors will pass unnoticed. You may notice a big problem after a large amount of data is lost or so.

If you include this statement in a function, it will be applicable only to statements in that function.

You can re-enable errors after using this statement by using

ON ERROR GOTO 0

As far as possible try to avoid the use of this statement.