Try this:
1) Install prjChameleon.ocx from: (you need an account to see links)
2) Copy the file to your system32 folder (64-bit may also require it in SysWOW64)
and then if your still having problems you probably need to register it by:
3) Running command prompt as administrator
4) Type in regsvr32 prjChameleon.ocx
Credit to: @(you need an account to see links)
Searching around the forums is also good to do before doing this