
Oh My Word....
I just had a little lightbulb thought go through my head and tested it.
I build the file in CAB Maker
The SHA1 of the CAB on the server disk in CAB Maker is
CabDef.CAB
8697EDC0AE5AFA7E30FF2DA2032B9031CD556EC51728A3ECCD5F3E0DA94076F9
I download it to my PC.
The SHA1 for that is
Microsoft.VBCE2.0RuntimeforCE3.0.486.cab
8697EDC0AE5AFA7E30FF2DA2032B9031CD556EC51728A3ECCD5F3E0DA94076F9
I uploaded it to the forum and then immediately downloaded it again
Microsoft.VBCE2.0RuntimeforCE3.0.486.cab
FD0392B65DE26AF197B2D329C69F165D69D9CFD70240FC4471D55998E79CD2F3
I just tested the raw file on the server's disk
183808-CAF270FD-43AE-41C4-B998-BEE2F080C359
FD0392B65DE26AF197B2D329C69F165D69D9CFD70240FC4471D55998E79CD2F3

the
FORUM is corrupting the CAB on upload
Try this:
<snip>