problem with DSOFile.exe

[melginger]

I think I made a mistake somewhere and I want to know if I can repair it...

I use the DSOfile to write properties in VISIO 4 files. The prob I think is that VISIO 4 wasn't a Microsoft product at that time.

So my problem is: I run my program and everything looks perfect (all the properties are correctly insert in my files) but when I open a file and write a title manually in the properties, when I save and close and then reopen the file, Everything's gone, except the title.Whatever I do after that, nothing changes. I can't write properties anymore... Often it replace what I wrote by some black sqare...

I need to do something to fix my mistake

Thanks