问题
I'm porting my Windows XP application (wrote with C#) to Windows 7 application. Now I'm using sqlite3.dll on my XP App (32bit) and I would download sqlite3.dll for 64bit machine. For my purpose I've moved sqlite3.dll on my /bin folder and, obviously, when I try to start my app on windows 7 I receive an error. So, where I download this file?
Please, help me...
Edit: I've downloaded sqlite3 http://www.sqlite.org/download.html
回答1:
The SQLite website only has the 32-bit .dll, to get a 64-bit one you'll have to download and compile the source yourself.
Since you're using C#, an easier way is to use System.Data.SQLite ( http://sqlite.phxsoftware.com/ ). They have a 64-bit download available, which is SQLite itself and their ADO.NET provider combined into one .dll. It's the easiest way to use SQLite on Windows with C# I think.
Update: New download URL is http://system.data.sqlite.org/index.html/doc/trunk/www/downloads.wiki
回答2:
bin/x64 directory contains 64-bit NATIVE DLL, named System.Data.SQLite.dll which is SQLITE3.dll compiled for AMD64/X86_64 platforms. The url is: http://sourceforge.net/projects/sqlite-dotnet2/files/SQLite%20for%20ADO.NET%202.0/1.0.66.0/ (IF it was you`re looking for).
回答3:
- Download SQLite-1.0.66.0-setup.exe from http://sourceforge.net/projects/sqlite-dotnet2/files/SQLite%20for%20ADO.NET%202.0/1.0.66.0/
- Run this executable will create a folder under C:\Program Files (x86)\SQLite.NET
- Pick the System.Data.SQLite.DLL from bin/x64 and renamed it to sqlite3.dll -- and you are good to go.
回答4:
For your case, since your app was already written, you won't want to rewrite it. You can simply recompile your .NET project targeting to 32 bit.
Right click your project-> properties -> build -> platform target : x86
64 bit app can only run on 64 machine while 32 bit app can run on both.
来源：https://stackoverflow.com/questions/3839669/dll-file-for-windows-7-64bit