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Zip files in MechworksPDM

When releasing a document MechworksPDM saves the currently released version of teh such document in a zip file; this is necessary to grant the revision rollback/restore action on a record.

Since years this method has improved also the storage space saving on the disk.

Starting from R17, Revision Files are no longer compressed (zipped in .GZ format). The reason of such change is because most of the nowadays applications (e.g.ample SolidWorks, MS Office, etc.) already have a compressed file format for their documents. Avoiding the file compression gives a significative performance enhancement (between 10% to 20%) for the Revision Life Cycle processes.

The new DBWGZIP.exe is named DBWGZIPR17.exe, and used if existing in the BIN directory, or side-by-side with the DBWAclServer.exe service. The DBWGZIPR17.exe is able to correctly uncompress the .GZ files created with the previous version of DBWGZIP.EXE, but creates a copy of the original file, even if still named with the .GZ extension (this for compatibility with all the core procedures handling .GZ files).