I suspect you have an earlier version on that machine. Look in Windows\System32 or Windows\SysWOW64 (for 64-bit systems) and check the version. 6.0.90.43 and up work fine on Windows 7. You can just copy the newer one over the others (after unregistering of course). Alternatively you can just put the ocx in with your binary. VB 6 looks first in the folder that the binary is started in, then in Windows\System. Don't forget that Windows 7 is a bitch to install in. If you're using InstallShield then make sure that the installation requires Administrator privileges. UAC can block system updates even with elevated privileges, so we often have users disable UAC temporarily during an install. (Would you believe UAC blocks installing a font ?!!) Also, beware Symantec and McAfee products. Disable them if present. Murray