There is no official help desk or troubleshooting available from Microsoft for this version.
For most users, moving to a modern solution is more efficient than troubleshooting 2007-era software. microsoft office visio standard 2007 download verified
Tools like Lucidchart or draw.io (Diagrams.net) can open many .vsd files and offer similar functionality for free in a browser. There is no official help desk or troubleshooting