Windows Installer Error 1706
No valid source could be found for product [2].

Where "2" is the name of the program attempting to install/repair.

If you installed your software from CD, you will need to provide the CD in order for the action to complete. If you installed your software from a network drive letter, make sure the drive is mapped again. 

To locate the area the software is attempting

http://www.daniweb.com/techtalkforums/thread24148.html

http://www.apnsoft.com/Default.aspx?MD=Downloads_TreeView

string aPath = Application.ExecutablePath.ToString();

system.IO

StreamWriter _filename = new StreamWriter(@"filename.csv");
	_filename.Write(thechar.UnicodeNumber+",");