I was recently trying to install SolidWorks 2011 on Windows 7 x64 and it failed. Typically I’d expect problems with XP x64, but not with Windows 7 with .Net and Windows Installer all part of the OS.
Diagnosis
The SolidWorks Installation Manager provided a link to the Installation Logs ( C:\Users\username\AppData\Roaming\SolidWorks\Installation Logs\2011 SP0 ). Looking at the latest txt file ( SummaryIMLog_20110.txt ) I saw “Installation Error 1719″ and “Installation Error 1603″.
I also looked at the Windows Event Viewer, and saw the failed installation and the Error 1719. See image below.

First Attempted Solution
- As Windows Installer v5 is part of Windows 7, it would not show up in Add/Remove Programs to do a repair (as I would have done for XP).
- Make sure that the Windows Installer service is running (Control Panel -> System and Security -> Administrative Tools -> Services)
- As on the SW KB, I had tried registering and reregistering Windows Installer.
Command Prompt:
msiexec.exe /unregister
msiexec /regserver
C:\Windows\Syswow64\Msiexec /regserver
- I even browsed directly to the SolidWorks setup (bypassing the Installation Manager), but it immediately threw up the 1719 error and stopped.

Final Solution to 1719 Installation Error
- Start, then Run, then type regedit
- Go to HKEY_LOCAL_MACHINE\SYSTEM\CURRENT CONTROL SET\SERVICES\MSIserver\WOW64
- Right click on WOW64, then select Modify
- Set Value Data to 0 (mine was set at 1) and Base should be Hexadecimal
(see below image for screenshot)
- Close the Registry Editor
- Reboot the PC
OR
Command Prompt: net stop msiserver and net start msiserver
- Install SolidWorks
Reference


sburke How-To, Note to Remember errors, install, SW2011

Background
If you have done a clean re-install of SolidWorks and are still getting strange errors (such as missing dlls, or “unknown file types”), it may well be Microsoft .NET Framework at fault. Most of the time, looking in the Windows Event Viewer will confirm this if there are .NET Framework errors showing up.
The first step is to do a repair of .NET Framework, by going to Add/Remove Programs, right-clicking on .NET Framework (choose 3.5 or 3.1 if present) and going Repair. This should work, however sometimes it doesn’t.
You can also try:
Exploring the SolidWorks DVD and in the prereqs folder run “dotnetfx3.exe” (or dotnetfx3_x64.exe). I tried this however I got strange errors about “mscoree.dll” etc.
Download and usage
If all else fails, you can use a “.NET Framework Cleanup Tool“. It works really well and has worked for me every time. You can download this Executable Tool (in a Zip file) from: http://blogs.msdn.com/b/astebner/archive/2008/08/28/8904493.aspx
- Just run the exe file and go “Cleanup Now”.
- It takes around 5 minutes to process and at the end you will be prompted to Restart the Computer. Restart the Computer/
- After the reboot, look in Add/Remove Programs. If its Windows XP, you will see the original .NET Framework 1.1 listed. Thats perfect.
- From the prereqs folder of the SolidWorks DVD run “dotnetfx3.exe” or “dotnetfx3_x64.exe”.
- Once this is installed, you should be able to start SolidWorks. (No need to go reinstalling SolidWorks)
- Fingers crossed the dll errors or strangeness in SolidWorks will have gone.
Notes:
This worked fine on SolidWorks 2009 and SolidWorks 2010
Search the SolidWorks Knowledge Base for the dll error messages or for errors regarding the feature you are having issues with (such as property tab builder etc.) It will typically tell you if its a .NET issue.
Link to dotnetfx3.exe and dotnetfx3_x64.exe
After running the cleanup tool, rebooting, installing dotnetfx3.exe SolidWorks will work fine.
Installing .NET Framework 3 (the dotnetfx3.exe linked above and on the SW prereqs folder), will install .NET Framework 2.0 and 3.0.
I suggest you run Windows Updates, several times. More than likely a .NET 3.5 will have to be installed. Note also, until you run Windows Updates and install all .NET Frameworks that were in place (in Add/Remove Programs in the very begining), some other installed programs on your computer may give out.
Lastly, use at your own risk!
sburke How-To, Note to Remember .net, 2009, 2010, errors, install