Hi all.

The same happened to me after upgrading to Win 7 64bit.

Thanks to Michael Lee i no longer have the issue, Dim Pro completely registered now.

Right clicked over the Dim Pro micro-host and ran as administrator, et voila!

Thanks Michael.

Bob

Exact same issue on new install of Win7 64bit. Thanks for the solution!

I had this issue. It was as simple as running DPro as admin.

Right click on the Sonar executable and select Run As Administrator. Then you can register it and you won't get asked anymore. 

EDITED: I was having an issue, but I got it sorted.

Since the solution to this was such a surprise (pleasantly) to me, I'd thought I'd post what happened.  Like the above, Dimension Pro 1.5 refused to register.  Doing the administrator trick didn't work either.  What did work was typing in the regcode character by character, rather than copy and paste.  I have no idea why, but am glad that mystery is resolved.  Onto the next......