ok, confirmed. the patches and instructions in this post did NOT work for me. HTC P3300 with original HTC WM6 rom.
procedure:
i have my 2GB card plugged in. the patch is in a folder on the rom. resco explorer is installed (on the card tho)
1) i execute SDHC.CAB, i am asked to reboot, stuff still works.
2) after reboot i copy the DLLs to the windows folder with resco. i am asked to overwrite and i check the file dates in \windows to make sure it worked.
3) i execute CERTS.CAB and once done,
4) i turn off the phone, switch to my 4GB (sandisk 4gb microsdhc)
i turn on and... no card. i go into configuration->memory ... sais no card.
i try to reformat the card with my PC, i have tried this file systems with NO success:
FAT:no
FAT32:no
NTFS:no
EXT2:no
EXT3:no
so... i'll wait for a single CAB that does it all. the guys who did the new roms will hopefully release one soon.
the thing is, this whole files posted here, remind me of a fake patch i tried several month ago. i remember this due the weird TXT that comes with it. it didn't work back then and it's not working now.