Hi JJJ,
There is a version of DSS that I packaged using a program called Thinapp back in about April. It works on Win7 with no issues. It is on the IIS FTP site.
Thinapp creates the the whole install into an executable, just download and run. Best to uninstall your current version, but it shouldnt be necessary.
http://www.iceinspace.com.au/uploads...SkyStacker.exe