I have tested and i dont understand it .
In the folder C:\cr2hdr\ i have the "cr2hdr.exe" "dcraw.exe" "exiftool.exe" und your vbs script.
In the folder C:\Test\ i put a dual iso test image.
if i run the script in the folder C:\cr2hdr\ it doesnt work.
If i put the "cr2hdr.exe" "dcraw.exe" "exiftool.exe" files in the folder C:\Test\ too.
It works like a charm if i start the script in the folder C:\Test\.
In the folder C:\cr2hdr\ i have the "cr2hdr.exe" "dcraw.exe" "exiftool.exe" und your vbs script.
In the folder C:\Test\ i put a dual iso test image.
if i run the script in the folder C:\cr2hdr\ it doesnt work.
If i put the "cr2hdr.exe" "dcraw.exe" "exiftool.exe" files in the folder C:\Test\ too.
It works like a charm if i start the script in the folder C:\Test\.