Modular Messaging FTP Backup on IIS 7

[joeb5110]

I have been doing FTP backups on MM 3.0 for a few years to a Windows XP desktop running IIS 6.
With support for XP going away, I have to move this to Windows 7, with IIS 7.5. The backups no
longer work. Specifically, it seems that MM can't save the .tar files. When I monitor the ftp
directory, I see that MM is able to create the folder, and starts to save the file, then it aborts.
The message at the end of the backup is
"making servermss01_201312261026_aynyn.bkp on 11.123.123.123
saving messaging-1.tar in /voicemail/servermss01_201312261026_aynyn.bkp/messaging-1.tar on 11.123.123.123
Unable to save messaging-1.tar as /voicemail/servermss01_201312261026_aynyn.bkp/messaging-1.tar on 11.123.123.123"

I can open an FTP session using the username/password set up in MM, and create directories, change directores, and "put" a complete .tar file (500mb), so none of the FTP filtering restrictions should be preventing the backup from completing.
Any ideas are appreciated.

 

[joeb5110]

Update:
I found what should be the answer in the Avaya Support database. Newer versions of FTP (such as on Windows 2008, which would also apply to Windows 7, they both use IIS 7 or higher), aren't supported in old releases of Modular Messaging. We're on 3.0, which date back to 2007.