no IsDebuggerPresent Plugin also wont work in win9x
because its algo is different
it does not use fs:[30] aka peb is Debuged pointer
so these plugins wont work in win9x series
you have to find some other way
like trying to modify the inc eax to xor eax eax in kernel32.dll
coz the pointer it sbbs also isnt mapped
so you cant do follow in dump and null it out