Need to pass values from XML file to msi at run time

[Tedcbe]

I have been given an xml file and the values from this file needs to be passed to an msi on run time. Can someone help me with this?

[DLee65]

I have done this in my Suite package using InstallScript. The code below can be modified to work with MSI. In this code I implement a generalized logging method that simply calls SuiteLogInfo, but you can call SprintfMsiLog instead.
This code snippet is part of a method where I pass in the element name and get its value. I do not have code to get XML attributes.

	szFile = szSourceFilePath ^ "mysourceFile.xml";
	SuiteLogInfo("Searching for xml value in %s", szFile);
	if (Is(FILE_EXISTS, szFile)) then
		//Open file for read permission
		try
			OpenFileMode(FILE_MODE_NORMAL);
			if (OpenFile(nvFileHandle, szInstallPath, "systemsettings.xml") < 0) then
				Err.Raise(ERROR_OPEN_FAILED);
			endif;
			
			while (GetLine(nvFileHandle, svLine) == 0)
				//GetValueIfFound
				SuiteLogInfo("Searching for %s in line: %s", p_szName, svLine);
				if (StrFindEx(svLine, p_szName, 0) >= 0) then	
				    //Trim leading spaces
				    StrTrim(svLine);
				    SuiteLogInfo("INFORMATION: Found value for %s in systemsettings.xml", p_szName);
					posStart = StrFindEx(svLine,">",0) + 1;
					posEnd = StrFindEx(svLine, "					SuiteLogInfo("INFORMATION: grabbing value between position %d and %d",posStart, posEnd);
					StrSub(svValue, svLine, posStart, posEnd-posStart);
					return svValue;					
				endif;
			endwhile; 
		catch
			/* Exception handler */
			SuiteLogInfo("WARNING: Unable to obtain information for %s from systemsettings.xml", p_szName);
		endcatch;