Alter the decls file like this
.lib "Requester.dll"
; Requester Functions...
Req_RequestColor$():"RequestColor"
Req_RequestFont$(iFontName$, iFontSize, iFlags):"RequestFont"
Req_RequestInput$(iTitle$, iMessage$, iDefaultText$):"RequestInput"
Req_RequestMessage$(iTitle$, iText$, iFlags):"RequestMessage"
Req_RequestOpenFile$(Title$, DefaultFile$, Pattern$, PatternPosition, Flags):"RequestOpenFile"
Req_RequestPath$(Title$, InitialPath$):"RequestPath"
Req_RequestSaveFile$(Title$, DefaultFile$, Pattern$, PatternPosition):"RequestSaveFile"
Req_RequestFileExtension$(FilePath$):"RequestFileExtension"
Req_RequestFileFileName$(FilePath$):"RequestFileFileName"
Req_RequestFilePath$(FilePath$):"RequestFilePath"
Now all commands have the Req_ extention...