Author : Chris Bedford
Topic Name : vSphere Client Software Requirements
Publication Name : vCenter Server Installation and Setup
Product/Version : VMware vSphere/6.7
We have a Windows Server 2003 IIS 7 hosted website that we would like to move onto a VM hosted machine. It cannot be updated because it is hosting sensitive legacy information. However the terminals that require access to the Website have to run an older version of Explorer because the website language is VBScript. If I move to new consoles with newer Browsers I can access the ESX host but not the Web Page. If I try to use the legacy consoles I can't even access the ESX7 host.
I don't see you have any recourse. There are only two possible options:
As @daphnissov has stated, there really isn't a viable option other than either upgrading your Windows Server 2003 IIS 7 hosted website to a more modern solution, or continuing to support this older system in such a manner that you can continue to access it using older versions of Internet Explorer. Also, I will unfortunately add to your difficulty by telling you that we are removing our recommendation for Internet Explorer beginning with vSphere Client 6.7 Update 2. Our recommended browsers are Chrome, Firefox, or Microsoft Edge as they are built on top of Chromium.
You might consider contacting VMware Support, and seeing if they have any solutions to recommendation.