HELP: Visual C++ 6 devdbg.pkg on Windows 7 crashing

I used to have a HP Core2Duo i2 desktop, with native Windows 7 SP1 and Visual C++ 6 running fine.

Now I got a Dell XPS 8700 i7 desktop, SSD, with native Windows 7 SP1 and Visual C++ 6 keeps on crashing everytime I load up a workspace/project.

devdbg.pkg exception, access violation

My work colleagues tell me their Visual C++ 6 runs fine on their Windows 7.

Does anyone have a clue why a Dell XPS 8700 i7 desktop (SSD) running native Win7SP1 would keep on crashing everytime I load up a workspace/project in Visual C++ 6 (latest service packs). But on my old PC (HP Core2Duo i2) Win7SP1, it runs fine?

Currently it's working.

I uninstalled and installed it on the HDD (D:\) rather than SDD (C:\).
It successfully loaded a workspace/project.
Sometimes it crashes with devncb.pkg (I recognise NCB means classview information). I usually delete the *.ncb so it generates a clean one.

Later sometimes is crashes with the devdbg.pkg violation again.

I decided to install Microsoft Platform SDK for Windows 7.

Now Visual C 6 seems to be more stable.
Fingers crossed it will be like this for a very very long time.