Batch script terminates in case of error when using pipe operator

Question

I need to perferm error handling (check ERRORLEVEL) on an operation involving the pipe operator, but instead of the script continuing with a non-zero ERRORLEVEL, it terminates immediately. How can I avoid this behavior?

Consider the following example. (Note that is a simplified constructed example to illustrate the problem - not a meaningful script)

someinvalidcommand
echo nextline

This will result in

> 'someinvalidcommand' is not recognized as ... command...
> nextline

In other words, the script continues after the error. Now consider

echo firstline | someinvalidcommand
echo nextline

This will result in only

> 'someinvalidcommand' is not recognized as ... command ...

That is, it terminates before evaluating "echo nextline"

Why this behavior and how to avoid it ? The purpose is to perform something similar to

someoperation | someotheroperation
IF NOT %ERRORLEVEL% == 0 (
    handleerror
)

but the error handling has no effect since it stops early.

Answer 1

Delegate it to another cmd instance

cmd /c" someoperation | someotheroperation "
if errorlevel 1 (
    handleerror
)