SDX with Tclkit lite doesn't work on windows?

Hello,

I've tried to wrap a simple vfs directory with

tclkit-cli sdx.kit wrap t1.exe -runtime tclkit-gui

but got the following error messages:

910 updates applied
error deleting "t1.exe.tmp": permission denied
    while executing
"file delete $out.tmp"
    invoked from within
"if {![catch { package require Mk4tcl }]} {
  vfs::mk4::Mount $out $out
  set argv $syncopts
  lappend argv -compress $compress -verbose $verbose -noer..."
    (file "D:/mingw08/msys/local/bin/sdx.kit/lib/app-sdx/wrap.tcl"
line 252)
    invoked from within
...

The file t1.exe was generated, but doesn't work:
t1.exe has no VFS data to start up

I used sdx.kit from
http://www.equi4.com/pub/sk/
(08-Apr-2007)
and kitgen.tgz from
http://www.equi4.com/pub/tk/tars/
(14-Apr-2007)
with tcl/tk 8.5a6 (release, not CVS).

Can somebody help me?
Of course, I can use a "classic" tclkit which worked fine with
a TclKit-lite runtim.

Thanks,
Jens