manual registration of the proper DLL requires knowing the bitness of the MS Office Suite.

Open Excel - goto File-Account-About Excel
Check the bitness on the top line where the Excel version is listed.

32-bit: GYPSY32_2009.dll
64-bit: GYPSY64_2009.dll

Copy proper DLL to any folder of your choice (preferably not a network drive!)
use regsvr32.exe for registration of the dll (both can use regsvr32)