Just an FYI on a KB we published today. If you try installing the App-V server and get error 25100 or 25109 then take a look at this one:
When you attempt to install the Application Virtualization 4.5 Management Server either through a typical installation option or a custom option that includes the Application Virtualization Management Web Service on Windows Server 2008 or Windows Server 2008 R2, you may encounter the following error: Error 25100. An internal error occurred. or Error 25122. The installation program was unable to register the ASP.NET web service extension.
This issue happens when trying to install the Application Virtualization Management Service version 4.5 on a Windows Server 2008 or Windows Server 2008 R2 server that has either the .NET 4.0 client profile or full installation of the .NET 4.0 framework. This issue occurs because the installer attempts to use the .NET 4.0 Framework path for registering the ASP.NET web extensions. You will also see the following in the Softgrid-server-setup.log file: [2010-04-22 16:29:57] (1408:3660) Running command ``"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe" -ir -enable``. [2010-04-22 16:29:57] (1408:3660) ::CreateProcess error 0x2.
For the latest version of this article and details on the resolution see KB2212140.
J.C. Hornbeck | System Center Knowledge Engineer
any ideas why this issue (25100) occurs when trying to update App-V Mgmt Service version 126.96.36.19980 to version 4.5 SP2 on Windows Server 2003 SP2? Originally we came from version 4.1.1, 4.1.3, 4.5... No hints concerning ASP.NET in setup logfile.