Norberto,
I don't use uestudio but I migrated from xHarbour to harbour a couple of years ago without problem. I've been successfully using msvc10 for more than a year now. Actually I use any compiler because I use a bat file with hbmk2.exe from Harbour that helps a lot. All my projects are built under the same structure:
d:\fwh (FIVEWIN)
d:\MSVS10 (MS VC 10)
D:\hbmsvc10 (harbour for msvc)
d:\Projetos\MyProject
d:\Projetos\MyProject\Sources (prg files)
d:\Projetos\MyProject\Res (res + bmp ico etc)
d:\Projetos\MyProject\Inc (ch files)
m.bat in d:\Projetos\MyProject
SET LIB=D:\MSVS10\SDK\v7.0A\Lib;D:\MSVS10\Lib
SET PATH=D:\MSVS10\bin;D:\hbmsvc10\bin\;D:\MSVS10\Common7\IDE;D:\MSVS10\SDK\v7.0A\bin;C:\WINDOWS;C:\WINDOWS\SYSTEM32
hbmk2 -run -inc -ldflag=/FORCE:MULTIPLE -iD:\fwh\include -iD:\MSVS10\SDK\v7.0A\Include -iD:\MSVS10\include -i.\INC MyProject.hbm D:\FWH\fwhc32.hbc
MyProject.hbm in d:\Projetos\MyProject
SOURCES\FILE_01
SOURCES\FILE_02
---
SOURCES\FILE_NN
RES\MyProject.rc
fwhc32.hbc in d:\FWH
{win}gt=gtgui
{win}libs=KERNEL32 USER32 GDI32 WINSPOOL COMCTL32 COMDLG32 ADVAPI32 SHELL32 OLE32 OLEAUT32 UUID ODBC32 ODBCCP32 IPHLPAPI MPR VERSION WSOCK32 MSIMG32 OLEDLG PSAPI GDIPLUS WINMM
{win}libs=HBWIN HBCT HBMEMIO PNG HBTIP XHB HBMISC
#HBTIPSSL
{win}libs=D:\FWH\LIB\FIVEHC32 D:\FWH\LIB\FIVEH32 D:\FWH\LIB\DOLPHINVC D:\FWH\LIB\libmysqlM
You can add any needed lib to fwhc32.hbc
I don't remember any work to be done on rc files. I use the same files with the 3 compilers. Linking XHB.lib should cover the specific functions from xHarbour.