I am unable to install PagePlus X7 on to a new Windows 11. I am using the original disc and correct serial key. The install seems to proceed until the very end, then I get the error message:

Installer Information

An error occurred during the installation of assembly 'Microsoft.MSXML2,publicKeyToken="6bd6b9abf345378f",version="4.20.9818.0",type="win32",processorArchitecture="x86". Please refer to Help and Support for more information. HRESULT: 0x80070091.

Would someone be able to offer a solution please? Thanks.