Have the same problem. During installation (as Administrator and with AntiVir switched off):
Unable to register the DLL/OCX: RegSvr32 failed with exit code 0x3
Anyone get this to work? I installed then got register eSellerateControl failed. Tried manual regsvr32, failed, tried to reboot and do a clean install, failed again. I just purchased this and would like to use it. I am running Windows 10 Enterprise.
Had the same issue on Windows 10. Installed Electric Mobile Studio as suggested in previous comment and then Assist installed without any problem. Uninstalled Studio straight away and Assist is still working. I think the problem is with the installer which doesn't identify missing components. Looking at the newly installed components (under programs & features), I can see the following were installed:
Microsoft Visual C++ 2012 Redistributable (x86) - 11.0.60610
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501
My guess is that Assist installer should check for the same requirements as Studio and install the missing components (like Studio). I think this could resolve this Win10 issue.