While Installing one Web Installer we were receiving no errors and in back ground all Icons are getting disappeared . So checked log file as
start à Run à %temp% ( c:\documents and settings\<User>\appdata\local\temp )
Here opened MSIxxxx.log file ( xxxx is random number ) and seen below line
Error 1704 Install for program is currently suspended. You must undo the changes made by that install to continue.
After reading the error went to Development team asked the procedure of Web installer and come to know they are calling MSI through an EXE at ending the setup
Which means Windows Installer is getting called while running the same which causing the Error.
To resolve the issue removed the MSI calling while ending the Web installer setup which resulted in Error free Web application Installation.