CHDIR/SetCurrentDirectory returns FILE_NOT_FOUND

Hi,

The installation routine of the ida dos disassembler (gg: ida37fw.zip),
wonn't work, because winedos/int21:0x3b CHDIR returns ERROR_FILE_NOT_FOUND.
If I return ERROR_PATH_NOT_FOUND it will install.
ntdll:RtlSetCurrentDirectory returns STATUS_OBJECT_NAME_NOT_FOUND, which gets
mapped to ERROR_FILE_NOT_FOUND (ntdll/error.c#L403).

How to achieve the right behavior?
 - Check for FILE_NOT_FOUND in winedos/int21.c: INT21_SetCurrentdirectory
 - Check for FILE_NOT_FOUND in kernel/path.c: SetCurrentDirectoryW/A
 - map STATUS_OBJECT_NAME_NOT_FOUND to ERROR_PATH_NOT_FOUND

Or any other idea?

Markus