Uninstallation of msi file programatically

NarVish

I could able to install msi file using below code and it installed sucessfully

string path = @"C:\Projects\Debug\ELSWinServInstaller.msi";
Process process = Process.Start(path);
process.WaitForInputIdle();
process.WaitForExit();

I tried to uninstall the same using below code, but its not working.

Process p = new Process();
p.StartInfo.FileName = "msiexec.exe";
p.StartInfo.Arguments = "/x \"C:\\Projects\\Debug\\ELSWinServInstaller.msi\"/qn";
p.Start();

Please let me know where I went wrong.

Lost User

NarVish wrote:

Please let me know where I went wrong.

You forgot to explain what "is not working" means. Did it start the process? Did it throw an exception?

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NarVish

"I tried to uninstall the same using below code, but its not working." Process p = new Process(); p.StartInfo.FileName = "msiexec.exe"; p.StartInfo.Arguments = "/x \"C:\\Projects\\Debug\\ELSWinServInstaller.msi\"/qn"; p.Start(); Unistallation code is not working. It didn't throw any exception. it executed each line. but uninstallation didn't happen.

Abhinav S

Could be a permission issue. For Vista and Windows 7, you might need to run this program as an administrator to uninstall the program.

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NarVish

I have administrator rights. If it is permission issue, my installation code also should not work. But installation done sucessfully.

Simon_Whale

can you uninstall this application from a command prompt? by running the same command? i.e.

c:\Projects\Debug\ELSWinServInstaller.msi /qn

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NarVish

yes, its working fine when I run the below command in visual studio command prompt. c:\Program Files\Microsoft Visual Studio 10.0\VC>msiexec /x C:\Lalitha\Projects\ Debug\ELSWinServInstaller.msi

Richard Deeming

NarVish wrote:

p.StartInfo.Arguments = "/x \"C:\\Projects\\Debug\\ELSWinServInstaller.msi\"/qn";;

Do you need a space between the closing quote around the MSI path and the /qn argument?

p.StartInfo.Arguments = "/x \"C:\\Projects\\Debug\\ELSWinServInstaller.msi\" /qn";

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NarVish

I tried by giving space as per your suggestion. Still, problem exists. No change

Lost User

NarVish wrote:

Unistallation code is not working. It didn't throw any exception. it executed each line. but uninstallation didn't happen.

That's a better description; now we can rule out any exceptions and focus on the rest. From where are you starting this? From a Windows-service? You could check the eventlog for any errors. As a quick workaround, try putting the complete command in a batch-file and execute that from code.

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