How do I run D3D9 programs (that have already been compiled) on a machine without the SDK?

I have a simple 3D application programmed in C++ and D3D9 using MSVC++ 2008 Express. Some weeks ago, I had to format my hard disk, so the DirectX SDK is not currently installed.

However, I found that the exe file that I found in my "Debug" folder for the project does not run. The error it gives is:

"This application has failed to start because d3dx9d_38.dll was not found. Re-installing the application may fix this problem."

Of 开发者_StackOverflowcourse, it worked after I installed the SDK. Then I compiled a "release build" thinking that that was the solution. Then I uninstalled the SDK and tried to run the .exe file. Still gave me the error.

So how does one make such .exe files run on machines without the SDK?

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I think you cannot run the app without the SDK. See XBMC, which requires the SDK to run.

However, you could try simply placing the required dll file from your SDK in the same directory as the executable.

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I followed the solution as stated here.

I copied the d3dx9_38.dll file into my Release folder. It still didn't work. However, I renamed the dll file to "d3dx9d_38.dll. Then it worked. Wondering why I had to rename to the debug version of the file even though it was a RELEASE build...