WebsitePanel Error: Web Application Gallery Module is Unavailable

You may receive the following error (shown in the image) while installing any of the Microsoft Applications from the Microsoft Web Application Gallery from WebsitePanel:

Solution

The solutions are different according to the 32-bit and 64-bit operating systems. They are as mentioned below – 

32-bit Operating System

Make changes in the Windows registry file as shown below:

1. First, open the registry to change MsDeploy v1 path.
2. Then, navigate through [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\IIS Extensions\MSDeploy\1].
3. Under ‘InstallPath_x86’, enter the value C:\Program Files\IIS\Microsoft Web Deploy\ (or path of ms deploy 1 installation).
4. Navigate through [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\IIS Extensions\MSDeploy\2].
5. Under ‘InstallPath_x86’, enter the value C:\Program Files\IIS\Microsoft Web Deploy V2\ (or path of MS deploy 2 installations).
6. Restart IIS after making the above changes. 

64-bit Operating System

1. Install the latest version of MS Deploy (x64 version)
2. Run WebsitePanel Server application pool in 64-bit mode.
   
3. Restart the IIS service.