For installing on Windows 7, you should be using Pervasive PSQL Summit v10.30, the only version certified for Win7. You can download a copy of this installer from the Pervasive web site here:
http://www.pervasivedb.com/Database/Trials/Pages/PSQLSummitv10TrialDownloads.aspx
While you're at it, you may want to upgrade your other systems to v10.30, too, to take advantage of the latest bug fixes and updates. Note that v10.00 does have a slightly different license scheme than PSQLv10.10 and newer, so if you happen to have two stacked licenses, you'll need to convert one to a User Count Increase first. If your server has a single PSQLv10 license installed on it, then you should have no issues.