boot.ini question

I have this boot.ini config:

[boot loader]
timeout=30
default=signature(c59cc59c)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
signature(c59cc59c)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
Professional" /noexecute=optin /fastdetect

I wonder what means signature(c59cc59c), and if I can delete that part.

Currently I am experiencing a delay when Windows is booting up.

I've got question, but don't know how to add new topic.

I have dual boot. 2 x SATA one HDD, OS is allways on the first partition
1. XP Pro
2. Win98

I need to choose OS before starting by NTLDR as I have old BIOS.
This edit of boot.ini is not correct, but I don't what is wrong there.

[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
Professional" /noexecute=optin /fastdetect
multi(0)disk(1)rdisk(0)partition(1)\WINDOWS="Microsoft Windows 98SE"

Error report is "wrong channel" by choise of Win98