Cancel (not skip) CRC check

Hi,

the installer starts with a crc checking by default.
I do not like to change that but I wonder if there could be an option that the user may cancel the crc checking after it has startet. So I know that the user may use the "/NCRC" option to skip the crc checking but what about aborting / cancel the checking in process ?

Any help is appreciated.
Thank you in advance.

This isn't possible without modifying the NSIS source code to my knowledge.

-Stu