hi friends

i have a big visual basic application, and now i am dividing the big

application into groups. (module1, module2,module3), which are

standalone.

the thing is, suppose module1 is installed, and now if i try to install

module2...it should ask whether any previous version is installed or not.

and if any present, it should remove the previous version before

installing the new version. (when i package module2).

1) how to achieve the functionality of asking whether a previous version

is existing or not?

2) and if previous version is present, how to delete it ?


any help is appreciated