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DOS疑难解答 & 问题讨论（解答室） » How to modify COMMAND.COM to prevent users from terminating batch processing with CTRL+C

Floor1　hyzys	Posted 2005-02-12 00:00
初级用户　Posts 17　Credits 189
We already know that by replacing the "DEL" characters in COMMAND.COM with other characters, users can't use the DEL command. Humbly asking, how to modify COMMAND.COM (using software like UltraEdit) to prevent users from terminating batch processing with CTRL+C? That is, which part or parts of COMMAND.COM need to be modified?

Floor2　Michael	Posted 2005-02-12 00:00
钻石会员　Posts 3,041　Credits 10,056
Modify the header or maybe the body of command.com. It's really sad that Ctrl+C terminates the batch processing.

Floor3　DOSforever	Posted 2005-02-12 00:00
金牌会员　Posts 2,239　Credits 4,639
Use 4DOS. It allows you to make the responses you specify for the CTRL-C or CTRL-Break key presses

Floor4　gmy	Posted 2005-02-17 00:00
版主　Posts 392　Credits 1,113
I'm also just about to ask this question, give it a bump, hope experts can offer solutions!

Floor5　gmy	Posted 2005-02-18 00:00
版主　Posts 392　Credits 1,113
Wengier, aren't you the one who knows the DOS kernel best? Please study this problem.

Floor7　本是	Posted 2006-02-23 13:28
银牌会员　Posts 790　Credits 2,227
It's of little significance! Because the processing of CTRL+C is in the INT 23h interrupt, you can modify this interrupt to execute the user program; Or more simply, SHELL=x:\abc\command.com, and the COMMAND.COM you modified will immediately become invalid!