Had an issue recently whilst trying to re mediate an App-V 4.5 management server. Another website had been installed which had overwritten the Default Web Site that App-V was using for it’s management web service on the Management Server thus the admin console would not connect. The management server was running on Server 2008 R2 and IIS 7.

After relocating the additional website, I removed and reinstalled  IIS making sure I selected the following two additional features (which are required);

• IIS6 Management Compatibility
• IIS Management Scripts and Tools

I then attempted to run the installer again but got the same error. After checking IIS the Default Web Site had not been created after reinstalling. I re-created this website (making sure I used the exact name – ‘Default Web Site’) and re-ran the installer which succeeded.

It transpires that the 4.5 installer is hard coded to use the Default Web Site

Cheers,

SteveH