Most systems have Microsoft Virtual Machine installed already but if you are having trouble viewing this PixAround Virtual Tour please install it.

VM is an Internet Explorer option that is necessary for viewing PixAround images. To install this option, visit http://www.microsoft.com/java/vm/dl_vm40.htm It is recommended that Microsoft Virtual Machine 1.1 be used together with Windows 95 and above. If Netscape is used, install Java Virtual Machine and use it together with Netscape 4.0 and above.

Or go straight to the patch download...

Microsoft VM build 3805 for Windows 95/98, Windows Me, Windows NT 4.0 and Windows XP 5.5 MB.
(Important Once installed, the Microsoft VM cannot be uninstalled.)
(All supported language versions are included in this download.)

Microsoft VM build 3805 for Microsoft Windows 2000 (Hotfix)
(Important Once installed, the Microsoft VM cannot be uninstalled.)
(Note Windows 2000 Service Pack 1 or Service Pack 2 must be installed prior to installing the 3805 hotfix.)