The Lead Tech tools must be available for the runtime engine. Usually, you can find them in the Windows\System32 folder (or equivalent on your Windows operating system, such as SYSWOW64).The primary Lead Tools files are:
ltkrn13n.dll
ltclr13n.dll
ltdis13n.dll
ltfil13b.dll
In addition, there are specific graphic-file dlls, such as:
lfbmp13n.dll for bmp files.
Copy all the primary files and any of the graphic-file specifc DLLs to your R&R runtime folder.
Here's the complete list, from the Developing Applications documentation:
LFBMP13N.DLL
LFCMP13N.DLL
LFFAX13N.DLL
LFGIF13N.DLL
LFPCX13N.DLL
LFPNG13N.DLL
LFTGA13N.DLL
LFWMF13N.DLL
LFWPG13.DLL
LTCLR13N.DLL
LTDIS13N.DLL
LTFIL13N.DLL
LTKRN13N.DLL
Image import files. Required if reports contain images.
Program folder