Problem Dual-ISO RAW | DNG -> cr2hdr results in error message

[TobiWan]

When I try to drop the DNG's into the cr2hdr.exe I get this message:

Data Area Passed to a System Call Is Too Small.

When I try it with only 73 files (DNG's) cr2hdr pops up very quickly, but nothing happens.
Everythin above 73 files, I get the error massage.

Raw2dng.exe works without problems!

Thanks for help.