c:\>sdx
couldn't read file "sdx.kit/main.tcl": no such file or directory
while executing
"source sdx.kit/main.tcl"
("uplevel" body line 1)
invoked from within
"uplevel [list source [file join $self main.tcl]]"
sdx downloaded from /pub/sk/sdx.kit on May 21 2003
Older version of sdx works fine

Can you elaborate, please? On Linux, I get:
teevie jcw $ ./sdx.kit
Specify one of the following commands:
addtoc eval fetch ftpd httpd httpdist ls lsk md5sum mkinfo
mkshow qwrap ratarx rexecd starsync sync tgz2kit treetime unwrap
update version wrap
For more information, type: ./sdx.kit help ?command?
teevie jcw $ tclkit sdx.kit
Specify one of the following commands:
addtoc eval fetch ftpd httpd httpdist ls lsk md5sum mkinfo
mkshow qwrap ratarx rexecd starsync sync tgz2kit treetime unwrap
update version wrap
For more information, type: sdx.kit help ?command?
teevie jcw $ tclkit sdx.kit eval info patchlevel
8.4.2
teevie jcw $ tclkit sdx.kit eval parray tcl_platform
tcl_platform(byteOrder) = littleEndian
tcl_platform(machine) = i686
tcl_platform(os) = Linux
tcl_platform(osVersion) = 2.4.20-gentoo-r5
tcl_platform(platform) = unix
tcl_platform(user) = jcw
tcl_platform(wordSize) = 4
teevie jcw $