I have the same problem with a first time install of Gnotella on Win98SE.

I have installed Gnotella v0.9.9 but every time I try to connect I get "Runtime Error 5 - Invalid call or argument" with following details:

GNOTELLA caused an invalid page fault in
module <unknown> at 0000:00000001.
Registers:
EAX=00000000 CS=016f EIP=00000001 EFLGS=00010202
EBX=00000000 SS=0177 ESP=0079f984 EBP=0079fa04
ECX=00498c5d DS=0177 ESI=00008a7c FS=533f
EDX=8178b608 ES=0177 EDI=0079fa0c GS=0000
Bytes at CS:EIP:
01 00 00 00 04 70 00 16 00 78 0c 65 04 70 00 65
Stack dump:
00498c5d 0000076c 00000002 00000000 00000000 0079fa0c 00008a7c 0079fa58
00000000 00000005 00000000 00000000 00000000 0e000000 00000000 00000000

Look forward to the amswer.