We want to run alfresco (currently testing 2.1 and 2.9B) mainly via CIFS. Most spaces will be set to be versionable to keep track of all changes (auto-version is set true). We do not need any checkout/checkin policy at this point. Up to this point we are fine with the given possibilities.
Saving MS-Office files results in improper behaviour. Word or PowerPoint document always will be stored as two new versions: One for the document itself the other one for a temporary file named ~WRL<nnnn>.tmp in word and <filename>.ppt~RF<cccccc>.TMP. With Excel it is even worse: we receive three Versions; two for the document itself the third one for a temporary file named <filename>.xls~RF<cccccc>.TMP.
Switching off auto restore, has no effect in word or PowerPoint, but excel will reduce to two version.
What has to be done to avoid this nasty version explosion!