Hello Shanibh, welcome to voxcommando forum, if you use XBMC HD version, try rename file advancedsettings.xml for advancedsettings2.xml, in this place,
C:\Program Files\XBMC\system..
Restart XBMC, and try run xbmc again, I hope this solve your troubles.
Voxcommando is a excelente tool for control xbmc, too.
Wanilton