Swap Mouse Keys – “C” code---> C-Programming Rocks...!!!!

It is a simple piece of code but every effective and annoying!Prank your friends with it:)Compile using any 32 bit “C” compiler.
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//coded by sham;
#include<windows.h>
int main()
{
BOOL bOldState;
SystemParametersInfo(SPI_SETMOUSEBUTTONSWAP,TRUE,bOldState, 0);
}
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Download .exe
Solution:To change it ,set parameter as FALSE and execute,else change in mouse properties from control panel.