I would like to create an installation software but I have some problem on computer where previous versions of certain OCX are installed (or are not installed).

In fact I must create a software which can be ran on any windows computer. When the software begins, he must check if OCX present on the system are ok. If not, he must upgrade automaticaly these OCX. At this time, I must upgrade 4 OCX: Richtx32.ocx, comctl32.ocx, comdlg32.ocx et tabctl32.ocx.

Anybody can help me?

Thank you in advance,

Philippe HALET