Timestamps are not recorded in the MSI File table and the timestamps in the CAB are only used to write the created/modified timestamp when a file is installed.
The only things that are used to decide whether a file is replaced are the file version of the installed file, the Version column of the File table, whether the modified timestamp on disk is different from the created timestamp, and whether a hash of the file matches the MsiFileHash table contents. If the file on disk has a version number and the File table's Version field has data, the versions are compared. If the Version field's value is higher, the file on disk is replaced. That's it. If the file on disk does not have a version number and the File table does, the file is replaced. If the file on disk has been modified (the modified timestamp is different from the created timestamp) it is never replaced. Otherwise the file is always (conceptually) replaced. To reduce the number of file copying operations and potentially the number of CABs that have to be retrieved, if the MsiFileHash table has a row for this file, the file is hashed; if the hash matches the file is not replaced. -- Mike Dimmick -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Michael Musenbrock Sent: 08 April 2008 19:01 To: Bob Arnson Cc: wix-users@lists.sourceforge.net Subject: Re: [WiX-users] Update Problems with versioned files (oxc) Bob Arnson schrieb: > Michael Musenbrock wrote: >> Even if the file has changed in the update, but the internal >> version number of this file hasn't been updated, it is ignored, > That's by design. If a file has versioninfo, MSI trusts it. See > http://msdn2.microsoft.com/en-us/library/aa368599(VS.85).aspx. Ok, thanks, but one thing is not covered, how the installer decides, if the version number of the file is equal, but the timestamps differ, in my case, newer file has a more actual timestamp. Regards, Michael ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Register now and save $200. Hurry, offer ends at 11:59 p.m., Monday, April 7! Use priority code J8TLD2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javao ne _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
