hi 
  i have one query on ivison labview toolkit 
 i have downloaded the trial version of it and iam using it and now  
i want to combine two avi files into one using that toolkit in that the functionalites used can overwrite but cannot join them that my problem 
i will explain in detail 
  in the software i have function which can write avi to disk for that i have given one input file and i have given another file as output both have some data now i thought of joining the avi but its overwriting that it now that function name is ivision_openavisession.vi 
so plz any one can help how to combine two avi files into one avi file using labview