i built the link (atleast 3 times now) with different voltage dividers
for those lines that require them.

now... i know its got to be something i am doing wrong.... i still
cant download a VMS file to the VMU. the hardware (voltage dividers),
every version of them, all hit the 3.3 to 3.5v marks for the signal
voltage. not a issue, this is why i think i might be misusing
sendfile.exe.

C:\Documents and
Settings\Dr_Blackross\Desktop\VMU2PCAlphaRelease>sendfile -h
Usage: sendfile [OPTIONS] FILE
Send a FILE to a Sega Dreamcast VM
Version 1.1

-d device set device where the VMU is connected
-t type filetype 0x33 = data, 0xcc = game
-n name filename inside VMU
-v verbose
-h This help text

C:\Documents and
Settings\Dr_Blackross\Desktop\VMU2PCAlphaRelease>sendfile -d lp
t1 -t 0xcc -n 3dball -v 3d-ball.vms
Size of file 8704 bytes, 17 blocks
open "lpt1" @ $378

then it crashes here is the error report...

AppName: sendfile.exe AppVer: 0.0.0.0 ModName: sendfile.exe
ModVer: 0.0.0.0 Offset: 00001926

this is where i snagged the sendfile.exe
http://www.maushammer.com/VMU2PCAlphaRelease.zip
now i dont know if Sören's code is more up-to-date, but i still
end up
with the same thing. reason i was saying it might be my error is in
hte syntax of sendfile.exe maybe i am not typing it right, lol, maybe
we need a VB version of sendfile... :) (for less human error)