Framework 2.0 Error 25015

message during .NET Framework 2.0 setup ★★★★★★★★★★★★★★★ Aaron StebnerNovember 15, 200611 0 0 0 Recently, I saw a post on the MSDN .NET Framework Setup Forum indicating that a customer was having trouble getting the .NET Framework 3.0 to install on his system. How to diagnose this error Theerror log for the .NET Framework 3.0 setup (%temp%\dd_dotnetfx3error.txt) showed the following information: [11/10/06,11:30:12] Microsoft .NET Framework 2.0: [2] Error: Installation failed for component Microsoft .NET Framework 2.0. MSI returned error code 1603[11/10/06,11:30:36] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0 is not installed.[11/10/06,11:30:37] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0 was not attempted to be installed. Based on this information, I determined that the .NET Framework 2.0 setup was failing. Then, I used the list of .NET Framework 3.0 setup log files to request additional information from the customer - specifically, the log file named %temp%\dd_netfx_retMSI*.txt. When the customer sent me this log file, I found the following error that was causing the .NET Framework 2.0 setup to fail: Error 25015.Failed to install assembly ‘C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Microsoft.VisualBasic.Vsa.dll' because of system error: The process cannot access the file because it is being used by another process. In addition, the customer sent me a log file created by Filemon that indicated that setup failed when attempting to open this file with an access denied error. How to workaround this error Based on the above information, I made an educated guess that there was something wrong with the folder and file permissions on the customer's system. Fortunately, he was able to use the following steps to resolve this issue and successfully install the .NET Framework 3.0: Use the SubInAcl tool described at http://blogs.msdn.com/astebner/archive/2006/09/04/739820.aspx to make sure that the Administrators group and the SYSTEM account both have permissions to folders under %windir% and registry hives under HKLM Run the cleanup tool described at http://blogs.msdn.com/astebner/arc

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