I recently discovered some files I had encrypted and archived on a CD using DDCrypt 2.0, which is a small encryption utility from back in the day. One of its functions is to create self-decrypting files, which are essentially EXE files that you can enter a password and then have the file extracted onto your filesystem.

Unfortunately, I can't seem to get them to do this properly. They appear to be decrypting and then at the last moment I get the error:

Error opening encrypted file C:\users\username\Temp\dde3cfa.tmp
Reason: Success

and then another dialog immediately says

Error extracting ddc file.

I'm not really sure what this means (certainly not success), but I've checked out the temporary file and it appears to be garbage data (although of the right file size).

I don't know if anyone has an idea what might be done here to extract the files, or has dealt with a similar situation before. Any ideas are appreciated!

Thank you in advance for your time and any help you can provide.