The Microsoft .NET Framework 4.5.1 is a highly compatible, in-place update to the Microsoft .NET Framework 4 and the Microsoft .NET Framework 4.5. The offline package can be used in situations where the web installer cannot be used due to lack of internet connectivity. This is an offline installer. There are separate installers for web and offline installation. If you intend to redistribute either of these installers in the setup for your own product or application, we recommend that you choose the web installer because it is smaller and typically downloads faster. You can download the web installer here.

1. automatic search path, supports all versions.
2 automatically detects whether a file has been Patch, the backup file.
3 automatic loading and Patch.

.netshrink is an executable compressor and DLL binder for .NET applications. It uses LZMA compression library and can decrease your file size by 50%. It can also protect your files with a password. With .netshrink you can also bind multiple DLL libraries to the output file so you can redistribute your application as a standalone file. .netshrink uses LZMA compression library to achieve maximum compression ratios. Password protection uses verification based on SHA256 hash function and 256 bit AES / Rijndael encryption.