I looking for a way to create Delta Diff Patches of Large Binary Files (VMWare Virtual Disk Files). Is there an implementation in C# or any useful methods in the the .NET Framework.
Any help is appreciated. Thanks.
rAyt
There's nothing built into the framework to do this.
You're going to have to look for 3rd party solutions, commercial or free, or write your own.
A common algorithm is the VCDiff algorithm, which is used by quite a large number of products.
bsdiff was designed to create very small patches for binary files.
As stated on its page, it requires max(17*n,9*n+m)+O(1) bytes of memory and runs in O((n+m) log n) time (where n is the size of the old file and m is the size of the new file), so it will take a long time and use a huge amount of memory to create diffs for virtual disk files.
The original implementation is in C, but a C# port is described here and available here.
Here's a C# class that implements Meyers O(ND) Difference Algorithm:
http://www.mathertel.de/Diff/default.aspx
Enjoy!
来源：https://stackoverflow.com/questions/892310/creating-delta-diff-patches-of-large-binary-files-in-c-sharp