Re: [WiX-users] Pyro not creating deltas despite using the -delta flag

Windows Installer uses an API that is now called PatchAPI for the actual "delta" compression. That API (along with its more modern replacement, which Windows Installer does not natively support) is documented on this page: http://msdn.microsoft.com/library/bb417345.aspx. One aspect of the algorithm

Re: [WiX-users] Pyro not creating deltas despite using the -delta flag

Hi Rob, Thanks for the reply. Any word on this? I did try Wix 3.5 but ran into (different) pyro problems due, I think, to it trying to create cabinets in parallel that required the same resources. If you think it might be better to persevere with v3.5 given the age of v3.0, I can give it anoth

Re: [WiX-users] Pyro not creating deltas despite using the -delta flag

Delta patching has all sorts of issues. I honestly don't know the state of delta patching in WiX v3.0 but my memory suggests that there were changes in WiX v3.5 for delta patching. I'll have to ask Peter Marcu since he built most of that system and doesn't hang out here. On Wed, Jan 5, 2011 at 2:4