VB6 Project won't open on Windows 7 64 bit...

Hi,

We have a large (175,000 lines, dozens of forms and modules) reporting system built on VB6.

I am charged with testing it on a Windows 7 64 bit box that has Office 2010 32 bit installed.

I am aware that we need to recode all the 32bit API function calls, and was aware that ADO is broken by Win7 SP1, but the issue I am having is that I can't even get the project to open using VB6 on Win7.

VB6 opens ok, I am running the VB6.exe as Administrator, I have followed the installation instructions on FortyPoundHead: Install VB6 on Windows 7 and am running VB6 under XP SP3 Compatibility with UAC disabled, Visual themes disabled, display scaling disabled...

To see what's possible, I started a new project with a blank Form, then tried to add the first contropl in the components list which is MS Calendar Control 6.0 but when I do that, VB6 crashes.

The same thing happens when I try to add Common Dialog Control, Common Controls etc...

The controls seem top be registered in the right place as in the VB6 Additional Components dialog the path is c:\windows\sysWOW64

Can anyone suggest the next steps I could take to even successfully add these controls?

thanks for ny help or advice
Philip