Visual C++ :: How To Make Bit Of Code Compatible With Both Debug And Release Builds

This code compiles in release mode but I get this compile error in debug mode:

Error1error C2664: 'GetPrivateProfileStringA' : cannot convert parameter 4 from 'wchar_t [255]' to 'LPSTR'g:easywebstoreuploaderini.cpp45

Code:
CString CIniFile::getKeyValue(CString strKey, CString strSection) {
wchar_t ac_Result[255];

// Get the info from the .ini file
m_lRetValue = GetPrivateProfileString(strSection, strKey, _T(""), ac_Result, 255, m_strFileName);

CString strResult(ac_Result);
return strResult;
}