Yesterday I have tried to install SQL Management Studio Express on Vista Business x64. But An error code 29506 encountered and installation failed and roll-back.
I have observed that most of apps based on MSI (.msi) encountered in Windows Vista, when UAC enabled. The main problem with MSI files is that you cannot right click it and “Run as Administrator” to bypass UAC validation. To solve this problem, Either you have to logged-in as Default Administrator account or disable UAC.
But don’t worry, There is another way to install SQL Management Studio Express on Windows Vista x64 flawlessly.
How To:
1. Run CMD as Administrator and Approve the UAC prompt.
2. Type the full absolute path of the MSI file, Such as:
C:\>E:\Downloads\SSMS_x64.msi
3. Follow your screen instruction and be happy with Windows Computing.
Applies To:
- Windows Vista x64 editions
- Windows 7 x64 editions



thanks
That fixed it. Much love.
If you are trying to install the x64 version of Management Studio you also need to run an elevated x64 cmd.
in the search bar type c:\windows\syswow64\cmd – right click, run as administrator.
then type the full path to the msi file.
Hello Mike,
The folder SysWOW64 contains 32bit binaries to run 32bit applications using SysWOW emulater which means cmd.exe (in SysWOW64 folder) is a 32bit executable.
Thank you
Worked on Windows 2008 R2 server