I've removed everything and reinstall wine and wtlib correctly:
My french version is working fine but not my japanese version...
Here is what i got from the shell:
aurelien@aurelien-laptop:~/.wine/drive_c/Program Files/Watchtower/MEPSCommon$ env WINEPREFIX="/home/aurelien/.wine" wine "C:\Program Files\Watchtower\Watchtower Library 2007\J\WTLibrary.exe"
preloader: Warning: failed to reserve range 00000000-00010000
fixme:menu:SetMenuInfo MNS_NOTIFYBYPOS partially implemented
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:create_server class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject no class object {96749377-3391-11d2-9ee3-00c04f797396} could be created for context 0x7
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:create_server class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject no class object {96749377-3391-11d2-9ee3-00c04f797396} could be created for context 0x7
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:create_server class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject no class object {96749377-3391-11d2-9ee3-00c04f797396} could be created for context 0x7
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:create_server class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject no class object {96749377-3391-11d2-9ee3-00c04f797396} could be created for context 0x7
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:create_server class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject no class object {96749377-3391-11d2-9ee3-00c04f797396} could be created for context 0x7
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:create_server class {96749377-3391-11d2-9ee3-00c04f797396} not registered
err:ole:CoGetClassObject no class object {96749377-3391-11d2-9ee3-00c04f797396} could be created for context 0x7
fixme:font:WineEngCreateFontInstance Untranslated charset 228
fixme:font:WineEngCreateFontInstance Untranslated charset 228
err:imm:ImeInquire No XIM in the back end
It seems that asian font is not yet supported ... or maybe a bug ^^