Fixing Error 1935. An error occurred during the installation of assembly errors.

Sometimes when installing software, I get an error during the installation of either the .Net framework or the Visual C Runtimes. This error, Error 1934. An error occurred during the instllation of assembly … will prevent the installation from being successfull, furthurmore after many hours of searching, many of the fixes listed around the web do not work.

To succsesfully allow the software installation to complete, a registry edit must be made. So go an open up Regedit and navigate to the following key: HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control double-click on the RegistrySizeLimit and edit the DWORD value. In Hexadecimal enter FFFFFFFF or alternatively enter 4294967295 as the decimal value.

Once the registry change is done, restart the machine and then you can start the setup again that was causing you the issues earlier.

An optional set you can do once you have restarted the machine is to open up a command prompt window and type in the following command: SFC /SCANNOW this begins a windows file integrity checker ensuring that all windows system files are genuine and have not been edited or replaced, if you are running Windows XP you will need your installation CD to complete the scan.

Just about every encounter I’ve had with this error the RegistrySizeLimit has fixed the issue.

Exchange Management with AD Users when using RSAT for Windows 7

One of the little things with the have annoyed me since I’ve started using the RSAT tools in Windows is the fact that there is no easy way to manage Exchange. Sure I can install the Exchange Management Pack and use that, but like most admin’s AD Users and Computers is open just about all the time.

First thing you will want to do is go and download the Exchange System Manager for Windows Vista (located here). Once downloaded, extract the .exe file so that you have an ESMVISTA.MSI file. Now that’s extracted, open up a command prompt window and move to the location that ESMVISTA lives. Type in the following:


With that command line the message is surpressed and the installation continues without any issues under Windows 7. This will only work for Windows 7 32-Bit and I have not found a way to get it working with 64-bit.

After a few minutes you will be able to open up AD Users and computers, right click and you will have the extra Exchange Tabs (pictured right), making Administration a little easier.