Gordian Knot problem (decomb.dll)

[nexus41]

Usually I use Gordian Knot to create divx. Until yesterday I did the job without any problem, today inexplicably (for me) opening the avs script made by GK with Vdub or a player,I get an error: "decomb.dll is not a valid AVIsynth 2.5 plugin"

The avs script is:

# PLUGINS 
SetWorkingDir("C:\PROGRA~1\GORDIA~1\") 
LoadPlugin("mpeg2dec3.dll") 
LoadPlugin("decomb.dll")

If I edit and modify last line as follow:

LoadPlugin("C:\PROGRA~1\GORDIA~1\decomb.dll")

or

LoadPlugin("C:\Programmi\Gordian Knot\decomb.dll")

all work again correctly. I try to uninstall/reboot/reinstall GK, I try to manually set the path of Avisynth plugin in GK, but the error remain the same. Any ideas?

TIA - Nexus.

[FOO]

I have had that message when Avisynth couldn't find the file at all.
There is a registry entry for Avisynth that specifies default
plugin directory. Regedit search for avisynth.

LOCAL_MACHINE/Software/Avisynth ?