The older technology (the one used by Windows Installer) is called PatchAPI (patchapi.h) and the newer one (not used by Windows Installer) is called MSDelta (msdelta.h)
Both are described in this paper: http://msdn.microsoft.com/library/bb417345.aspx. You can see the clear advantages of MSDelta over PatchAPI, but I don't see a clear path for Windows Installer to transition. PatchAPI may have a bit more detail in this older paper: http://msdn.microsoft.com/library/ms811406.aspx but I doubt it. The newer paper pretty much simply adds to the older one. -----Original Message----- From: Darren Grant [mailto:therealklu...@gmail.com] Sent: Tuesday, November 24, 2009 11:24 AM To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] Delta patching a very large binary file. OK I determined the files are PE. The state of MS delta tech integration is really useful to know. Can you reveal the name of the new delta tech for keeping tabs? It seems that a third-party option will be required at this time. Thank you for your insights! --Darren On Mon, Nov 23, 2009 at 11:24 PM, Blair <os...@live.com> wrote: > PE/PE+ question is referring to the files you are trying to ship the deltas > of (your huge files). > > PE is the 32-bit binary file format Microsoft uses for .exe, .dll, etc. > files. It is also the file format used for most .NET files. PE+ is the > 64-bit binary file format Microsoft uses for the same file types. > > mspatch[c/a] are "optimized" for 32-bit binary files and are alleged to not > be as efficient with 64-bit files. Microsoft has a newer "delta"-style > technology/API that they want everyone to use instead of mspatch[c/a], but > Windows Installer (for legacy reasons) is stuck using the older > technology/API. > > -----Original Message----- > From: Darren Grant [mailto:therealklu...@gmail.com] > Sent: Monday, November 23, 2009 10:44 PM > To: General discussion for Windows Installer XML toolset. > Subject: Re: [WiX-users] Delta patching a very large binary file. > > Hi Blair, > > I did not supply mspatchc with the pdb, but I will try this as well as > the dll's from a few other SDK versions. > > By PE/+ are you referring to the mspatch tools? These were 32-bit. > > > Thank you, > Darren > > > > > On Mon, Nov 23, 2009 at 6:46 PM, Blair <os...@live.com> wrote: >> One additional question: are the binary files PE or PE+? mspatchc/mspatcha >> are documented to work better with 32-bit (PE) than 64-bit (PE+) files. >> >> -----Original Message----- >> From: Blair [mailto:os...@live.com] >> Sent: Monday, November 23, 2009 6:43 PM >> To: 'General discussion for Windows Installer XML toolset.' >> Subject: RE: [WiX-users] Delta patching a very large binary file. >> >> Were you able to supply mspatchc with the symbols file (*.pdb) for the >> binary? It is documented to be able to better compress files when the PDB > is >> supplied. I don't know what definition of better they mean, but you could >> try it both ways (with and without the PDBs). >> >> Unfortunately Windows Installer uses mspatcha to apply the delta to the >> file(s), and that doesn't appear to be overridable. If you can find a >> replacement for mspatchc that doesn't fail with the large files that >> produces output compatible with mspatcha (assuming mspatcha can deal with >> files that big), I can help you with the binder extension you would need > to >> build your delta patches. >> >> Also mspatchc/mspatcha come from Windows (mspatchc in the SDK and mspatcha >> in Windows itself). You could try changing the mspatchc/mspatcha versions > to >> see if the windows build/sdk they come from make any difference. >> >> -----Original Message----- >> From: Darren Grant [mailto:therealklu...@gmail.com] >> Sent: Monday, November 23, 2009 1:25 PM >> To: wix-users@lists.sourceforge.net >> Subject: [WiX-users] Delta patching a very large binary file. >> >> Hi, >> >> I am new to WiX and MSI programming in general, coming from an >> imperative NSIS background where I used vpatch to apply delta patches >> to large (> 500-MB) binary files. >> >> Deferring to the experts out there, how do you achieve this with WiX? >> :) Unfortunately the files are too large for mspatchc and it just >> creates a replacement instead of a delta after almost a couple hours >> of processing. >> >> >> Thank you! >> >> --Darren >> >> > ---------------------------------------------------------------------------- >> -- >> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > 30-Day >> trial. 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